Journey to Work Profiles for Large Metropolitan Areas
Important Notes:
Large Metropolitan areas are defined as MSAs with population greater than one million.
Geography used: The United States Office of Management and Budget (OMB) defines metropolitan areas (MAs) according to published standards that are applied to Census Bureau data. The general concept of an MA is that of a core area containing a large population nucleus, together with adjacent communities having a high degree of economic and social integration with that core. MAs in this report are based on application of 1990 standards (which appeared in the Federal Register on March 30, 1990) to 1990 decennial census data and to subsequent Census Bureau population estimates and special census data. This report uses the June 30, 1999 definition of MAs (new definitions were published by OMB on June 3, 2003, but are not used in this report). A metropolitan area is called a Consolidated Metropolitan Statistical Area (CMSA) if it meets requirements of an MSA, has a population of 1 million or more, if the component areas are recognized as primary metropolitan statistical areas (PMSA), and if local opinion favors the designation. For example, the Washington, D.C. CMSA incorporates the Washington, D.C. PMSA, Baltimore, MD PMSA, and Hagerstown, MD PMSA.
For both the 1990 and 2000 data items included in this profile (except 1990 Median income, and 1990 Median age) all the values are adjusted for the geographic definition of MSAs as on June 30, 1999. For more information on the June 30, 1999 definition for MSA geography, please refer to the Census Bureau website at: http://www.census.gov/population/www/estimates/metroarea.html
Adjusted geography for 1990 data: 1990 data for MSAs were prepared using county level data from 1990 Summary File 3 files, and then aggregating the data for 1999 geographic definitions.
1990 Central County: Central Counties are the same as those defined in the 1990 Journey to Work Trends Report. For the MSAs that were not included in the 1990 report, ONE county was selected based on the primary downtown area.
Median Age and Median Income: 1990 Median age and 1990 median income values are based on Census Bureau's published values using June 30, 1993 definition of MSAs.
Mode to Work: Public transportation (transit) includes bus or trolley bus, streetcar or trolley car, subway or elevated, railroad, ferryboat, and taxicab.
Travel Time to Work-Top Coding issues: In the 1990 Census (including the CTPP data), the maximum travel time assigned to any worker was 99 minutes. Workers who reported travel times of 100 minutes or more were coded to 99 minutes in 1990. The maximum travel time was increased to 200 minutes for Census 2000, thus the 2000 data are more accurate because they include the actual value for these long trips. The impact of this coding change is that increases in travel time between 1990 and 2000 are somewhat over-stated. At the national level, the Census Bureau estimates that about 29% (0.9 minutes) of the 3.1-minute increase in average travel time is attributable to the coding change.
Table 1: Listing of Metropolitan Areas With Population of Over One Million Inhabitants in 2000
| No. | Metropolitan Area | 2000 Population |
| | National Summary Statistics |
| 1 | Atlanta, GA MSA | 4,112,198 |
| 2 | Austin--San Marcos, TX MSA | 1,249,763 |
| 3 | Boston--Worcester--Lawrence, MA--NH--ME--CT CMSA | 5,819,100 |
| 4 | Buffalo--Niagara Falls, NY MSA | 1,170,111 |
| 5 | Charlotte--Gastonia--Rock Hill, NC--SC MSA | 1,499,293 |
| 6 | Chicago--Gary--Kenosha, IL--IN--WI CMSA | 9,157,540 |
| 7 | Cincinnati--Hamilton, OH--KY--IN CMSA | 1,979,202 |
| 8 | Cleveland--Akron, OH CMSA | 2,945,831 |
| 9 | Columbus, OH MSA | 1,540,157 |
| 10 | Dallas--Fort Worth, TX CMSA | 5,221,801 |
| 11 | Denver--Boulder--Greeley, CO CMSA | 2,581,506 |
| 12 | Detroit--Ann Arbor--Flint, MI CMSA | 5,456,428 |
| 13 | Grand Rapids--Muskegon--Holland, MI MSA | 1,088,514 |
| 14 | Greensboro--Winston-Salem--High Point, NC MSA | 1,251,509 |
| 15 | Hartford, CT MSA | 1,183,110 |
| 16 | Houston--Galveston--Brazoria, TX CMSA | 4,669,571 |
| 17 | Indianapolis, IN MSA | 1,607,486 |
| 18 | Jacksonville, FL MSA | 1,100,491 |
| 19 | Kansas City, MO--KS MSA | 1,776,062 |
| 20 | Las Vegas, NV--AZ MSA | 1,563,282 |
| 21 | Los Angeles--Riverside--Orange County, CA CMSA | 16,373,645 |
| 22 | Louisville, KY--IN MSA | 1,025,598 |
| 23 | Memphis, TN--AR--MS MSA | 1,135,614 |
| 24 | Miami--Fort Lauderdale, FL CMSA | 3,876,380 |
| 25 | Milwaukee--Racine, WI CMSA | 1,689,572 |
| 26 | Minneapolis--St. Paul, MN--WI MSA | 2,968,806 |
| 27 | Nashville, TN MSA | 1,231,311 |
| 28 | New Orleans, LA MSA | 1,337,726 |
| 29 | New York--Northern New Jersey--Long Island, NY--NJ--CT--PA CMSA | 21,199,865 |
| 30 | Norfolk--Virginia Beach--Newport News, VA--NC MSA | 1,569,541 |
| 31 | Oklahoma City, OK MSA | 1,083,346 |
| 32 | Orlando, FL MSA | 1,644,561 |
| 33 | Philadelphia--Wilmington--Atlantic City, PA--NJ--DE--MD CMSA | 6,188,463 |
| 34 | Phoenix--Mesa, AZ MSA | 3,251,876 |
| 35 | Pittsburgh, PA MSA | 2,358,695 |
| 36 | Portland--Salem, OR--WA CMSA | 2,265,223 |
| 37 | Providence--Fall River--Warwick, RI--MA MSA | 1,188,613 |
| 38 | Raleigh--Durham--Chapel Hill, NC MSA | 1,187,941 |
| 39 | Rochester, NY MSA | 1,098,201 |
| 40 | Sacramento--Yolo, CA CMSA | 1,796,857 |
| 41 | Salt Lake City--Ogden, UT MSA | 1,333,914 |
| 42 | San Antonio, TX MSA | 1,592,383 |
| 43 | San Diego, CA MSA | 2,813,833 |
| 44 | San Francisco--Oakland--San Jose, CA CMSA | 7,039,362 |
| 45 | Seattle--Tacoma--Bremerton, WA CMSA | 3,554,760 |
| 46 | St. Louis, MO--IL MSA | 2,603,607 |
| 47 | Tampa--St. Petersburg--Clearwater, FL MSA | 2,395,997 |
| 48 | Washington--Baltimore, DC--MD--VA--WV CMSA | 7,608,070 |
| 49 | West Palm Beach--Boca Raton, FL MSA | 1,131,184 |
Table 1: Listing of Metropolitan Areas With Population of Over One Million Inhabitants in 2000
| Demographics and Land Area |
Travel Time |
Journey to Work by Mode |
| Area Population |
281,421,906 |
Mean (in minutes) |
National |
| % Inside 49 Metro Areas |
57.39 |
Originating in: |
% Drive Alone |
75.70 |
| % Remainder of Nation |
42.61 |
Nation |
25.50 |
% Carpooled |
12.19 |
| % Urban |
79.01 |
49 Metro Areas |
27.90 |
% Public Transit |
4.73 |
| % Rural |
20.99 |
Remainder of Nation |
22.40 |
% Walk |
2.93 |
| |
% Bicycle |
0.38 |
| Total Households |
105,539,122 |
|
% Other |
0.81 |
| Persons Per Household |
2.59 |
Commute Length |
% Work at Home |
3.26 |
| Median Household Income |
National |
Inside 49 Metro Areas |
| Nationwide |
$41,994 |
% Less Than 15 Minutes |
28.44 |
% Drive Alone |
73.56 |
| |
% 15 - 29 Minutes |
34.93 |
% Carpooled |
11.80 |
| % 30 - 39 Minutes |
15.26 |
% Public Transit |
7.40 |
| % 40 - 59 Minutes |
10.39 |
% Walk |
2.87 |
| National Age Characteristcs |
% 60 Minutes or More |
7.72 |
% Bicycle |
0.40 |
| Median Age |
35.30 |
% At Home |
3.26 |
% Other |
0.78 |
| % 14 Years or Less |
21.40 |
Inside 49 Metro Areas |
% Work at Home |
3.18 |
| % 65 Years or More |
12.40 |
% Less Than 15 Minutes |
22.73 |
|
| |
% 15 - 29 Minutes |
34.74 |
Remainder of Nation |
| Square Miles |
% 30 - 39 Minutes |
17.49 |
% Drive Alone |
78.70 |
| National Total |
3,536,338 |
% 40 - 59 Minutes |
12.69 |
% Carpooled |
12.73 |
| % Inside 49 Metro Areas |
10.88 |
% 60 Minutes or More |
9.17 |
% Public Transit |
0.96 |
| % Remainder of Nation |
89.12 |
% At Home |
3.18 |
% Walk |
3.01 |
| |
Remainder of Nation |
% Bicycle |
0.36 |
| Workers |
% Less Than 15 Minutes |
36.50 |
% Other |
0.86 |
| National Total |
128,279,228 |
% 15 - 29 Minutes |
35.20 |
% Work at Home |
3.38 |
| % of Population |
45.6 |
% 30 - 39 Minutes |
12.13 |
|
| % Male |
53.7 |
% 40 - 59 Minutes |
7.13 |
|
| % Female |
46.3 |
% 60 Minutes or More |
5.66 |
General Indicators |
| Inside 49 Metro Areas |
75,067,972 |
% At Home |
3.38 |
National |
| % Inside 49 Metro Areas |
58.5% |
|
Population/Sq. Mile |
80 |
| Remainder of Nation |
53,211,256 |
Time Workers Leave Home |
Households/Sq. Mile |
30 |
| % Remainder of Nation |
41.5% |
|
Workers/Sq. Mile |
36 |
| |
National |
Workers/Household |
1.22 |
| Household Vehicle Availability |
5:00 AM - 6:59 AM |
26.22 |
Vehicles/Household |
1.69 |
| National |
7:00 AM - 8:29 AM |
40.31 |
Vehicles/Worker |
1.39 |
| Total Vehicles |
178,344,236 |
8:30 AM - 9:59 AM |
10.42 |
|
| % 0 Vehicles |
10.30 |
All Other Departures |
19.78 |
Inside 49 Metro Areas |
| % 1 Vehicles |
34.25 |
Worked at Home |
3.26 |
Population/Sq. Mile |
420 |
| % 2 Vehicles |
38.36 |
|
Households/Sq. Mile |
155 |
| % 3+ Vehicles |
17.10 |
Inside 49 Metro Areas |
Workers/Sq. Mile |
195 |
| Inside 49 Metro Areas |
5:00 AM - 6:59 AM |
25.57 |
Workers/Household |
1.25 |
| Total Vehicles |
97,334,931 |
7:00 AM - 8:29 AM |
40.63 |
Vehicles/Household |
1.63 |
| % 0 Vehicles |
12.14 |
8:30 AM - 9:59 AM |
11.76 |
Vehicles/Worker |
1.30 |
| % 1 Vehicles |
34.83 |
All Other Departures |
18.87 |
|
| % 2 Vehicles |
37.41 |
Worked at Home |
3.18 |
Remainder of Nation |
| % 3+ Vehicles |
15.62 |
Population/Sq. Mile |
38 |
|
| Remainder of Nation |
Remainder of Nation |
Households/Sq. Mile |
14 |
| Total Vehicles |
81,009,305 |
5:00 AM - 6:59 AM |
27.15 |
Workers/Sq. Mile |
17 |
| % 0 Vehicles |
7.88 |
7:00 AM - 8:29 AM |
39.86 |
Workers/Household |
1.17 |
| % 1 Vehicles |
33.49 |
8:30 AM - 9:59 AM |
8.53 |
Vehicles/Household |
1.77 |
| % 2 Vehicles |
39.61 |
All Other Departures |
21.08 |
Vehicles/Worker |
1.52 |
| % 3+ Vehicles |
19.03 |
Worked at Home |
3.38 |
|

| Demographics | 1990 | 2000 | % Change | General Indicators | 1990 | 2000 |
| | | | | | | |
| Total population | 2,959,950 | 4,112,198 | 28.0 | Population per square mile | 483 | 671 |
| Total households | 1,102,578 | 1,504,871 | 26.7 | Households per square mile | 180 | 246 |
| Total workers | 1,542,948 | 2,060,632 | 25.1 | Workers per square mile | 252 | 336 |
| Total area (square miles) | 6,126 | 6,126 | -- | Workers per person | 0.52 | 0.50 |
| Total household vehicles | 2,014,959 | 2,712,116 | 25.7 | Workers per household | 1.40 | 1.37 |
| Median age | 31.4 | 32.9 | 4.6 | Persons per household | 2.68 | 2.73 |
| Median household income | $36,051 | $51,948 | 30.6 | Vehicles per household | 1.83 | 1.80 |
1990 Central County: Fulton County, Georgia
| Demographics | 1990 | 2000 | % Change | General Indicators | 1990 | 2000 |
| Total population | 648,951 | 816,006 | 20.5 | Population per square mile | 1,176 | 1,479 |
| Total households | 257,140 | 321,242 | 20.0 | Households per square mile | 466 | 582 |
| Total workers | 315,366 | 385,442 | 18.2 | Workers per square mile | 572 | 699 |
Mode to Work
Household Vehicles
* 1990 Median age and median income are published for 1990 MSA geographic extent.
| Demographics | 1990 | 2000 | % Change | General Indicators | 1990 | 2000 |
| Total population | 846,227 | 1,249,763 | 32.3 | Population per square mile | 200 | 296 |
| Total households | 325,995 | 471,855 | 30.9 | Households per square mile | 77 | 112 |
| Total workers | 431,345 | 649,645 | 33.6 | Workers per square mile | 102 | 154 |
| Total area (square miles) | 4,226 | 4,226 | -- | Workers per person | 0.51 | 0.52 |
| Total household vehicles | 543,069 | 817,861 | 33.6 | Workers per household | 1.32 | 1.38 |
| Median age | 29.3 | 30.9 | 5.3 | Persons per household | 2.60 | 2.65 |
| Median household income | $28,474 | $48,950 | 41.8 | Vehicles per household | 1.67 | 1.73 |
1990 Central County- Travis County, Texas
| Demographics | 1990 | 2000 | % Change | General Indicators | 1990 | 2000 |
| Total population | 576,407 | 812,280 | 29.0 | Population per square mile | 548 | 773 |
| Total households | 232,861 | 320,766 | 27.4 | Households per square mile | 222 | 305 |
| Total workers | 302,909 | 433,064 | 30.1 | Workers per square mile | 288 | 412 |
Mode to Work
Household Vehicles
* 1990 Median age and median income are published for 1990 MSA geographic extent.
| Demographics | 1990 | 2000 | % Change | General Indicators | 1990 | 2000 |
| Total population | 5,455,403 | 5,819,100 | 6.3 | Population per square mile | 846 | 902 |
| Total households | 2,025,426 | 2,220,528 | 8.8 | Households per square mile | 314 | 344 |
| Total workers | 2,760,435 | 2,898,680 | 4.8 | Workers per square mile | 428 | 449 |
| Total area (square miles) | 6,450 | 6,450 | -- | Workers per person | 0.51 | 0.50 |
| Total household vehicles | 3,175,703 | 3,506,230 | 9.4 | Workers per household | 1.36 | 1.31 |
| Median age | 33.2 | 36.1 | 8.0 | Persons per household | 2.69 | 2.62 |
| Median household income | $40,666 | $52,792 | 23.0 | Vehicles per household | 1.57 | 1.58 |
1990 Central County: Suffolk County, Massachusetts
| Demographics | 1990 | 2000 | % Change | General Indicators | 1990 | 2000 |
| Total population | 663,906 | 689,807 | 3.8 | Population per square mile | 9,660 | 10,036 |
| Total households | 264,061 | 278,722 | 5.3 | Households per square mile | 3,842 | 4,055 |
| Total workers | 324,109 | 320,979 | -1.0 | Workers per square mile | 4,716 | 4,670 |
Mode to Work
Household Vehicles
* 1990 Median age and median income are published for 1990 MSA geographic extent.
| Demographics | 1990 | 2000 | % Change | General Indicators | 1990 | 2000 |
| Total population | 1,189,288 | 1,170,111 | -1.6 | Population per square mile | 759 | 746 |
| Total households | 461,803 | 468,719 | 1.5 | Households per square mile | 295 | 299 |
| Total workers | 531,122 | 520,350 | -2.1 | Workers per square mile | 339 | 332 |
| Total area (square miles) | 1,568 | 1,568 | -- | Workers per person | 0.45 | 0.44 |
| Total household vehicles | 680,478 | 695,638 | 2.2 | Workers per household | 1.15 | 1.11 |
| Median age | 34.7 | 38.0 | 8.7 | Persons per household | 2.58 | 2.50 |
| Median household income | $28,084 | $38,488 | 27.0 | Vehicles per household | 1.47 | 1.48 |
1990 Central County: Erie County, New York
| Demographics | 1990 | 2000 | % Change | General Indicators | 1990 | 2000 |
| Total population | 968,532 | 950,265 | -1.9 | Population per square mile | 938 | 920 |
| Total households | 376,994 | 380,873 | 1.0 | Households per square mile | 365 | 369 |
| Total workers | 432,883 | 421,809 | -2.6 | Workers per square mile | 419 | 409 |
Mode to Work
Household Vehicles
* 1990 Median age and median income are published for 1990 MSA geographic extent.
| Demographics | 1990 | 2000 | % Change | General Indicators | 1990 | 2000 |
| Total population | 1,162,093 | 1,499,293 | 22.5 | Population per square mile | 344 | 444 |
| Total households | 440,670 | 575,293 | 23.4 | Households per square mile | 130 | 170 |
| Total workers | 604,856 | 751,629 | 19.5 | Workers per square mile | 179 | 222 |
| Total area (square miles) | 3,378 | 3,378 | -- | Workers per person | 0.52 | 0.50 |
| Total household vehicles | 802,407 | 1,038,050 | 22.7 | Workers per household | 1.37 | 1.31 |
| Median age | 32.7 | 34.3 | 4.7 | Persons per household | 2.64 | 2.61 |
| Median household income | $31,125 | $46,119 | 32.5 | Vehicles per household | 1.82 | 1.80 |
1990 Central County-Mecklenburg County, North Carolina
| Demographics | 1990 | 2000 | % Change | General Indicators | 1990 | 2000 |
| Total population | 511,433 | 695,454 | 26.5 | Population per square mile | 915 | 1,244 |
| Total households | 200,219 | 273,416 | 26.8 | Households per square mile | 358 | 489 |
| Total workers | 277,227 | 362,991 | 23.6 | Workers per square mile | 496 | 649 |
Mode to Work
Household Vehicles
* 1990 Median age and median income are published for 1990 MSA geographic extent.
| Demographics | 1990 | 2000 | % Change | General Indicators | 1990 | 2000 |
| Total population | 8,239,820 | 9,157,540 | 10.0 | Population per square mile | 1189 | 1321 |
| Total households | 2,969,099 | 3,302,211 | 10.1 | Households per square mile | 428 | 476 |
| Total workers | 3,922,295 | 4,218,108 | 7.0 | Workers per square mile | 566 | 609 |
| Total area (square miles) | 6,931 | 6,931 | -- | Workers per person | 0.48 | 0.46 |
| Total household vehicles | 4,456,553 | 5,144,308 | 13.4 | Workers per household | 1.32 | 1.28 |
| Median age | 32.3 | 33.9 | 4.7 | Persons per household | 2.78 | 2.77 |
| Median household income | $35,918 | $51,046 | 29.6 | Vehicles per household | 1.50 | 1.56 |
1990 Central County: Cook County, Illinois
| Demographics | 1990 | 2000 | % Change | General Indicators | 1990 | 2000 |
| Total population | 5,105,067 | 5,376,741 | 5.1 | Population per square mile | 5,290 | 5,572 |
| Total households | 1,879,488 | 1,974,181 | 4.8 | Households per square mile | 1,948 | 2,046 |
| Total workers | 2,369,624 | 2,371,161 | 0.1 | Workers per square mile | 2,456 | 2,457 |
Mode to Work
Household Vehicles
* 1990 Median age and median income are published for 1990 MSA geographic extent.
| Demographics | 1990 | 2000 | % Change | General Indicators | 1990 | 2000 |
| Total population | 1,817,571 | 1,979,202 | 8.2 | Population per square mile | 477 | 520 |
| Total households | 679,137 | 768,130 | 11.6 | Households per square mile | 178 | 202 |
| Total workers | 844,125 | 951,709 | 11.3 | Workers per square mile | 222 | 250 |
| Total area (square miles) | 3,810 | 3,810 | -- | Workers per person | 0.46 | 0.48 |
| Total household vehicles | 1,164,437 | 1,344,766 | 13.4 | Workers per household | 1.24 | 1.24 |
| Median age | 32.2 | 35.0 | 8.0 | Persons per household | 2.68 | 2.58 |
| Median household income | $30,977 | $44,914 | 31.0 | Vehicles per household | 1.71 | 1.75 |
1990 Central County: Hamilton County, Ohio
| Demographics | 1990 | 2000 | % Change | General Indicators | 1990 | 2000 |
| Total population | 866,228 | 845,303 | -2.5 | Population per square mile | 2,071 | 2,021 |
| Total households | 338,881 | 346,790 | 2.3 | Households per square mile | 810 | 829 |
| Total workers | 399,406 | 398,465 | -0.2 | Workers per square mile | 955 | 953 |
Mode to Work
Household Vehicles
* 1990 Median age and median income are published for 1990 MSA geographic extent.
| Demographics | 1990 | 2000 | % Change | General Indicators | 1990 | 2000 |
| Total population | 2,859,644 | 2,945,831 | 2.9 | Population per square mile | 792 | 815 |
| Total households | 1,094,413 | 1,166,799 | 6.2 | Households per square mile | 303 | 323 |
| Total workers | 1,282,092 | 1,375,774 | 6.8 | Workers per square mile | 355 | 381 |
| Total area (square miles) | 3,613 | 3,613 | -- | Workers per person | 0.45 | 0.47 |
| Total household vehicles | 1,800,347 | 1,950,546 | 7.7 | Workers per household | 1.17 | 1.18 |
| Median age | 34.2 | 37.2 | 8.1 | Persons per household | 2.61 | 2.52 |
| Median household income | $30,332 | $42,215 | 28.1 | Vehicles per household | 1.65 | 1.67 |
1990 Central County: Cuyahoga County, Ohio
| Demographics | 1990 | 2000 | % Change | General Indicators | 1990 | 2000 |
| Total population | 1,412,140 | 1,393,978 | -1.3 | Population per square mile | 2,942 | 2,904 |
| Total households | 563,243 | 571,457 | 1.4 | Households per square mile | 1,173 | 1,191 |
| Total workers | 617,552 | 622,876 | 0.9 | Workers per square mile | 1,287 | 1,298 |
Mode to Work
Household Vehicles
* 1990 Median age and median income are published for 1990 MSA geographic extent.
| Demographics | 1990 | 2000 | % Change | General Indicators | 1990 | 2000 |
| Total population | 1,345,450 | 1,540,157 | 12.6 | Population per square mile | 428 | 490 |
| Total households | 513,498 | 610,757 | 15.9 | Households per square mile | 163 | 194 |
| Total workers | 663,006 | 777,922 | 14.8 | Workers per square mile | 211 | 248 |
| Total area (square miles) | 3,142 | 3,142 | -- | Workers per person | 0.49 | 0.51 |
| Total household vehicles | 885,428 | 1,060,779 | 16.5 | Workers per household | 1.29 | 1.27 |
| Median age | 31.5 | 33.6 | 6.3 | Persons per household | 2.62 | 2.52 |
| Median household income | $30,668 | $44,782 | 31.5 | Vehicles per household | 1.72 | 1.74 |
1990 Central County: Franklin County, Ohio
| Demographics | 1990 | 2000 | % Change | General Indicators | 1990 | 2000 |
| Total population | 961,437 | 1,068,978 | 10.1 | Population per square mile | 1,727 | 1,920 |
| Total households | 378,723 | 438,778 | 13.7 | Households per square mile | 680 | 788 |
| Total workers | 487,305 | 548,655 | 11.2 | Workers per square mile | 875 | 985 |
Mode to Work
Household Vehicles
* 1990 Median age and median income are published for 1990 MSA geographic extent.
| Demographics | 1990 | 2000 | % Change | General Indicators | 1990 | 2000 |
| Total population | 4,037,282 | 5,221,801 | 22.7 | Population per square mile | 443 | 574 |
| Total households | 1,508,031 | 1,906,764 | 20.9 | Households per square mile | 166 | 209 |
| Total workers | 2,038,398 | 2,527,648 | 19.4 | Workers per square mile | 224 | 278 |
| Total area (square miles) | 9,105 | 9,105 | -- | Workers per person | 0.50 | 0.48 |
| Total household vehicles | 2,642,332 | 3,309,062 | 20.1 | Workers per household | 1.35 | 1.33 |
| Median age | 30.5 | 32.1 | 5.0 | Persons per household | 2.68 | 2.74 |
| Median household income | $32,825 | $47,418 | 30.8 | Vehicles per household | 1.75 | 1.74 |
1990 Central County: Dallas County, Texas
| Demographics | 1990 | 2000 | % Change | General Indicators | 1990 | 2000 |
| Total population | 1,852,810 | 2,218,899 | 16.5 | Population per square mile | 2,061 | 2,469 |
| Total households | 701,686 | 807,621 | 13.1 | Households per square mile | 781 | 898 |
| Total workers | 943,146 | 1,038,779 | 9.2 | Workers per square mile | 1,049 | 1,156 |
Mode to Work
Household Vehicles
* 1990 Median age and median income are published for 1990 MSA geographic extent.
| Demographics | 1990 | 2000 | % Change | General Indicators | 1990 | 2000 |
| Total population | 1,980,140 | 2,581,506 | 23.3 | Population per square mile | 233 | 304 |
| Total households | 785,276 | 1,003,218 | 21.7 | Households per square mile | 92 | 118 |
| Total workers | 1,026,847 | 1,346,025 | 23.7 | Workers per square mile | 121 | 158 |
| Total area (square miles) | 8,496 | 8,496 | -- | Workers per person | 0.52 | 0.52 |
| Total household vehicles | 1,413,776 | 1,819,266 | 22.3 | Workers per household | 1.31 | 1.34 |
| Median age | 32.6 | 33.8 | 3.6 | Persons per household | 2.52 | 2.57 |
| Median household income | $33,126 | $51,088 | 35.2 | Vehicles per household | 1.80 | 1.81 |
1990 Central County: Denver County, Colorado
| Demographics | 1990 | 2000 | % Change | General Indicators | 1990 | 2000 |
| Total population | 467,610 | 554,636 | 15.7 | Population per square mile | 4,513 | 5,352 |
| Total households | 210,952 | 239,235 | 11.8 | Households per square mile | 2,036 | 2,309 |
| Total workers | 231,503 | 278,715 | 16.9 | Workers per square mile | 2,234 | 2,690 |
Mode to Work
Household Vehicles
* 1990 Median age and median income are published for 1990 MSA geographic extent.
| Demographics | 1990 | 2000 | % Change | General Indicators | 1990 | 2000 |
| Total population | 5,187,171 | 5,456,428 | 4.9 | Population per square mile | 790 | 831 |
| Total households | 1,916,409 | 2,081,797 | 7.9 | Households per square mile | 292 | 317 |
| Total workers | 2,294,108 | 2,482,457 | 7.6 | Workers per square mile | 349 | 378 |
| Total area (square miles) | 6,566 | 6,566 | -- | Workers per person | 0.44 | 0.45 |
| Total household vehicles | 3,216,005 | 3,570,089 | 9.9 | Workers per household | 1.20 | 1.19 |
| Median age | 32.8 | 35.3 | 7.1 | Persons per household | 2.71 | 2.62 |
| Median household income | $34,729 | $49,160 | 29.4 | Vehicles per household | 1.68 | 1.71 |
1990 Central County: Wayne County, Michigan
| Demographics | 1990 | 2000 | % Change | General Indicators | 1990 | 2000 |
| Total population | 2,111,687 | 2,061,162 | -2.5 | Population per square mile | 3,431 | 3,349 |
| Total households | 780,535 | 768,440 | -1.6 | Households per square mile | 1,268 | 1,248 |
| Total workers | 822,620 | 827,311 | 0.6 | Workers per square mile | 1,337 | 1,344 |
Mode to Work
Household Vehicles
* 1990 Median age and median income are published for 1990 MSA geographic extent.
| Demographics | 1990 | 2000 | % Change | General Indicators | 1990 | 2000 |
| Total population | 937,891 | 1,088,514 | 13.8 | Population per square mile | 340 | 395 |
| Total households | 333,911 | 396,047 | 15.7 | Households per square mile | 121 | 144 |
| Total workers | 442,228 | 531,924 | 16.9 | Workers per square mile | 160 | 193 |
| Total area (square miles) | 2,759 | 2,759 | -- | Workers per person | 0.47 | 0.49 |
| Total household vehicles | 603,190 | 727,228 | 17.1 | Workers per household | 1.32 | 1.34 |
| Median age | 30.5 | 33.2 | 8.0 | Persons per household | 2.81 | 2.75 |
| Median household income | $33,515 | $46,116 | 27.3 | Vehicles per household | 1.81 | 1.84 |
1990 Central County: Kent County, Michigan
| Demographics | 1990 | 2000 | % Change | General Indicators | 1990 | 2000 |
| Total population | 500,631 | 574,335 | 12.8 | Population per square mile | 568 | 651 |
| Total households | 181,740 | 212,890 | 14.6 | Households per square mile | 206 | 241 |
| Total workers | 242,899 | 284,236 | 14.5 | Workers per square mile | 275 | 322 |
Mode to Work
Household Vehicles
* 1990 Median age and median income are published for 1990 MSA geographic extent.
| Demographics | 1990 | 2000 | % Change | General Indicators | 1990 | 2000 |
| Total population | 1,050,304 | 1,251,509 | 16.1 | Population per square mile | 270 | 322 |
| Total households | 414,793 | 498,751 | 16.8 | Households per square mile | 107 | 128 |
| Total workers | 550,325 | 618,921 | 11.1 | Workers per square mile | 142 | 159 |
| Total area (square miles) | 3,883 | 3,883 | -- | Workers per person | 0.52 | 0.49 |
| Total household vehicles | 768,868 | 916,224 | 16.1 | Workers per household | 1.33 | 1.24 |
| Median age | 33.9 | 36.0 | 5.9 | Persons per household | 2.53 | 2.51 |
| Median household income | $29,254 | $40,913 | 28.5 | Vehicles per household | 1.85 | 1.84 |
1990 Central County: Guilford County, North Carolina
| Demographics | 1990 | 2000 | % Change | General Indicators | 1990 | 2000 |
| Total population | 347,420 | 421,048 | 17.5 | Population per square mile | 530 | 642 |
| Total households | 137,706 | 168,667 | 18.4 | Households per square mile | 210 | 257 |
| Total workers | 185,853 | 213,079 | 12.8 | Workers per square mile | 283 | 325 |
Mode to Work
Household Vehicles
* 1990 Median age and median income are published for 1990 MSA geographic extent.
| Demographics | 1990 | 2000 | % Change | General Indicators | 1990 | 2000 |
| Total population | 1,157,585 | 1,183,110 | 2.2 | Population per square mile | 764 | 781 |
| Total households | 435,130 | 457,407 | 4.9 | Households per square mile | 287 | 302 |
| Total workers | 597,831 | 573,114 | -4.3 | Workers per square mile | 395 | 378 |
| Total area (square miles) | 1,515 | 1,515 | -- | Workers per person | 0.52 | 0.48 |
| Total household vehicles | 756,826 | 772,583 | 2.0 | Workers per household | 1.37 | 1.25 |
| Median age | 34.3 | 37.3 | 8.0 | Persons per household | 2.66 | 2.59 |
| Median household income | $41,440 | $52,188 | 20.6 | Vehicles per household | 1.74 | 1.69 |
1990 Central County: Hartford County, Connecticut
| Demographics | 1990 | 2000 | % Change | General Indicators | 1990 | 2000 |
| Total population | 851,783 | 857,183 | 0.6 | Population per square mile | 1,147 | 1,154 |
| Total households | 324,691 | 335,098 | 3.1 | Households per square mile | 437 | 451 |
| Total workers | 432,836 | 403,863 | -7.2 | Workers per square mile | 583 | 544 |
Mode to Work
Household Vehicles
* 1990 Median age and median income are published for 1990 MSA geographic extent.
| Demographics | 1990 | 2000 | % Change | General Indicators | 1990 | 2000 |
| Total population | 3,731,131 | 4,669,571 | 20.1 | Population per square mile | 484 | 606 |
| Total households | 1,338,775 | 1,639,401 | 18.3 | Households per square mile | 174 | 213 |
| Total workers | 1,768,567 | 2,081,607 | 15.0 | Workers per square mile | 229 | 270 |
| Total area (square miles) | 7,707 | 7,707 | -- | Workers per person | 0.47 | 0.45 |
| Total household vehicles | 2,211,912 | 2,749,253 | 19.5 | Workers per household | 1.32 | 1.27 |
| Median age | 30.5 | 31.9 | 4.4 | Persons per household | 2.79 | 2.85 |
| Median household income | $31,488 | $44,761 | 29.7 | Vehicles per household | 1.65 | 1.68 |
1990 Central County: Harris County, Texas
| Demographics | 1990 | 2000 | % Change | General Indicators | 1990 | 2000 |
| Total population | 2,818,199 | 3,400,578 | 17.1 | Population per square mile | 1,618 | 1,953 |
| Total households | 1,026,448 | 1,205,516 | 14.9 | Households per square mile | 589 | 692 |
| Total workers | 1,356,196 | 1,515,593 | 10.5 | Workers per square mile | 779 | 870 |
Mode to Work
Household Vehicles
* 1990 Median age and median income are published for 1990 MSA geographic extent.
| Demographics | 1990 | 2000 | % Change | General Indicators | 1990 | 2000 |
| Total population | 1,380,491 | 1,607,486 | 14.1 | Population per square mile | 392 | 456 |
| Total households | 529,814 | 629,655 | 15.9 | Households per square mile | 150 | 179 |
| Total workers | 683,007 | 795,755 | 14.2 | Workers per square mile | 194 | 226 |
| Total area (square miles) | 3,523 | 3,523 | -- | Workers per person | 0.49 | 0.50 |
| Total household vehicles | 915,269 | 1,114,638 | 17.9 | Workers per household | 1.29 | 1.26 |
| Median age | 32.3 | 34.6 | 6.6 | Persons per household | 2.61 | 2.55 |
| Median household income | $31,655 | $45,548 | 30.5 | Vehicles per household | 1.73 | 1.77 |
1990 Central County: Marion County, Indiana
| Demographics | 1990 | 2000 | % Change | General Indicators | 1990 | 2000 |
| Total population | 797,159 | 860,454 | 7.4 | Population per square mile | 1,932 | 2,085 |
| Total households | 319,471 | 352,164 | 9.3 | Households per square mile | 774 | 853 |
| Total workers | 396,584 | 424,598 | 6.6 | Workers per square mile | 961 | 1,029 |
Mode to Work
Household Vehicles
* 1990 Median age and median income are published for 1990 MSA geographic extent.
| Demographics | 1990 | 2000 | % Change | General Indicators | 1990 | 2000 |
| Total population | 906,727 | 1,100,491 | 17.6 | Population per square mile | 344 | 418 |
| Total households | 343,526 | 425,584 | 19.3 | Households per square mile | 130 | 161 |
| Total workers | 443,882 | 527,718 | 15.9 | Workers per square mile | 168 | 200 |
| Total area (square miles) | 2,636 | 2,636 | -- | Workers per person | 0.49 | 0.48 |
| Total household vehicles | 565,294 | 713,254 | 20.7 | Workers per household | 1.29 | 1.24 |
| Median age | 31.9 | 35.3 | 9.7 | Persons per household | 2.64 | 2.59 |
| Median household income | $29,514 | $42,439 | 30.5 | Vehicles per household | 1.65 | 1.68 |
1990 Central County: Duval County, Florida
| Demographics | 1990 | 2000 | % Change | General Indicators | 1990 | 2000 |
| Total population | 672,971 | 778,879 | 13.6 | Population per square mile | 868 | 1,004 |
| Total households | 257,245 | 303,747 | 15.3 | Households per square mile | 332 | 392 |
| Total workers | 333,152 | 374,292 | 11.0 | Workers per square mile | 430 | 483 |
Mode to Work
Household Vehicles
* 1990 Median age and median income are published for 1990 MSA geographic extent.
| Demographics | 1990 | 2000 | % Change | General Indicators | 1990 | 2000 |
| Total population | 1,582,875 | 1,776,062 | 10.9 | Population per square mile | 293 | 328 |
| Total households | 608,459 | 694,468 | 12.4 | Households per square mile | 113 | 128 |
| Total workers | 778,624 | 881,258 | 11.6 | Workers per square mile | 144 | 163 |
| Total area (square miles) | 5,407 | 5,407 | -- | Workers per person | 0.49 | 0.50 |
| Total household vehicles | 1,055,490 | 1,224,685 | 13.8 | Workers per household | 1.28 | 1.27 |
| Median age | 32.9 | 35.2 | 6.5 | Persons per household | 2.60 | 2.56 |
| Median household income | $31,613 | $46,193 | 31.6 | Vehicles per household | 1.73 | 1.76 |
1990 Central County: Jackson County, Missouri
| Demographics | 1990 | 2000 | % Change | General Indicators | 1990 | 2000 |
| Total population | 633,232 | 654,880 | 3.3 | Population per square mile | 1,018 | 1,052 |
| Total households | 252,582 | 266,294 | 5.1 | Households per square mile | 406 | 428 |
| Total workers | 304,852 | 310,789 | 1.9 | Workers per square mile | 490 | 499 |
Mode to Work
Household Vehicles
* 1990 Median age and median income are published for 1990 MSA geographic extent.
| Demographics | 1990 | 2000 | % Change | General Indicators | 1990 | 2000 |
| Total population | 852,737 | 1,563,282 | 45.5 | Population per square mile | 22 | 40 |
| Total households | 330,490 | 588,371 | 43.8 | Households per square mile | 8 | 15 |
| Total workers | 416,025 | 702,535 | 40.8 | Workers per square mile | 11 | 18 |
| Total area (square miles) | 39,370 | 39,370 | -- | Workers per person | 0.49 | 0.45 |
| Total household vehicles | 552,035 | 945,041 | 41.6 | Workers per household | 1.26 | 1.19 |
| Median age | 32.9 | 35.2 | 6.5 | Persons per household | 2.58 | 2.66 |
| Median household income | $30,746 | $42,468 | 27.6 | Vehicles per household | 1.67 | 1.61 |
1990 Central County: Clark County, Nevada
| Demographics | 1990 | 2000 | % Change | General Indicators | 1990 | 2000 |
| Total population | 741,459 | 1,375,765 | 46.1 | Population per square mile | 92 | 170 |
| Total households | 287,025 | 512,253 | 44.0 | Households per square mile | 35 | 63 |
| Total workers | 371,128 | 631,236 | 41.2 | Workers per square mile | 46 | 78 |
Mode to Work
Household Vehicles
* 1990 Median age and median income are published for 1990 MSA geographic extent.
| Demographics | 1990 | 2000 | % Change | General Indicators | 1990 | 2000 |
| Total population | 14,531,529 | 16,373,645 | 11.3 | Population per square mile | 428 | 482 |
| Total households | 4,900,720 | 5,347,107 | 8.3 | Households per square mile | 144 | 157 |
| Total workers | 6,809,043 | 6,767,619 | -0.6 | Workers per square mile | 200 | 199 |
| Total area (square miles) | 33,966 | 33,966 | -- | Workers per person | 0.47 | 0.41 |
| Total household vehicles | 8,693,126 | 9,137,648 | 4.9 | Workers per household | 1.39 | 1.27 |
| Median age | 30.7 | 32.3 | 5.0 | Persons per household | 2.97 | 3.06 |
| Median household income | $36,711 | $45,903 | 20.0 | Vehicles per household | 1.77 | 1.71 |
1990 Central County: Los Angeles County, California
| Demographics | 1990 | 2000 | % Change | General Indicators | 1990 | 2000 |
| Total population | 8,863,164 | 9,519,338 | 6.9 | Population per square mile | 2,153 | 2,313 |
| Total households | 2,989,552 | 3,133,774 | 4.6 | Households per square mile | 726 | 761 |
| Total workers | 4,115,248 | 3,858,750 | -6.6 | Workers per square mile | 1,000 | 938 |
Mode to Work
Household Vehicles
* 1990 Median age and median income are published for 1990 MSA geographic extent.
| Demographics | 1990 | 2000 | % Change | General Indicators | 1990 | 2000 |
| Total population | 948,829 | 1,025,598 | 7.5 | Population per square mile | 458 | 495 |
| Total households | 366,364 | 412,050 | 11.1 | Households per square mile | 177 | 199 |
| Total workers | 442,933 | 492,821 | 10.1 | Workers per square mile | 214 | 238 |
| Total area (square miles) | 2,072 | 2,072 | -- | Workers per person | 0.47 | 0.48 |
| Total household vehicles | 613,603 | 697,446 | 12.0 | Workers per household | 1.21 | 1.20 |
| Median age | 33.7 | 36.5 | 7.6 | Persons per household | 2.59 | 2.49 |
| Median household income | $27,599 | $40,821 | 32.4 | Vehicles per household | 1.67 | 1.69 |
1990 Central County: Jefferson County, Kentucky
| Demographics | 1990 | 2000 | % Change | General Indicators | 1990 | 2000 |
| Total population | 664,937 | 693,604 | 4.1 | Population per square mile | 1,643 | 1,714 |
| Total households | 264,138 | 287,012 | 8.0 | Households per square mile | 653 | 709 |
| Total workers | 311,336 | 329,091 | 5.4 | Workers per square mile | 769 | 813 |
Mode to Work
Household Vehicles
* 1990 Median age and median income are published for 1990 MSA geographic extent.
| Demographics | 1990 | 2000 | % Change | General Indicators | 1990 | 2000 |
| Total population | 1,007,306 | 1,135,614 | 11.3 | Population per square mile | 335 | 378 |
| Total households | 365,450 | 424,202 | 13.9 | Households per square mile | 122 | 141 |
| Total workers | 458,534 | 511,111 | 10.3 | Workers per square mile | 152 | 170 |
| Total area (square miles) | 3,008 | 3,008 | -- | Workers per person | 0.46 | 0.45 |
| Total household vehicles | 579,424 | 689,563 | 16.0 | Workers per household | 1.25 | 1.20 |
| Median age | 31.1 | 33.2 | 6.4 | Persons per household | 2.76 | 2.68 |
| Median household income | $26,994 | $40,201 | 32.9 | Vehicles per household | 1.59 | 1.63 |
1990 Central County: Shelby County, Tennessee
| Demographics | 1990 | 2000 | % Change | General Indicators | 1990 | 2000 |
| Total population | 826,330 | 897,472 | 7.9 | Population per square mile | 1,047 | 1,137 |
| Total households | 303,571 | 338,366 | 10.3 | Households per square mile | 384 | 429 |
| Total workers | 379,633 | 402,560 | 5.7 | Workers per square mile | 481 | 510 |
Mode to Work
Household Vehicles
* 1990 Median age and median income are published for 1990 MSA geographic extent.