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Table 1. Selected Characteristics
Table 1. Selected Characteristics Census 2000 2006-2010 ACS 2010 Census Is Change between Census 2000 and 2006-2010 ACS Significant in Number?**
Value MOE(+/-) Value MOE(+/-)
Total Persons 1 281,421,906 -- 303,965,272 0 308,745,538 --
Persons in Households 2 273,637,396 11,132 295,968,252 0 300,758,215 Yes
Total Households 3 105,539,122 12,431 114,235,996 248,114 116,716,292 Yes
Average Number of Persons per Household 4 2.59 0.00 2.59 0.01 2.58 No
Average Household Income 5 $56,643 $21 $70,883 $313 -- Yes
Average Number of Vehicles per Household 6 1.69 0.00 1.77 0.01 -- Yes
Percent of Persons in Poverty 7 12.40 0.00 13.80 0.00 -- --
Percent Minority 8 24.90 0.00 26.00 0.00 27.60 --
Percent of Persons 65 and Over 9 12.40 0.00 12.70 0.00 13.00 --
Percent of Persons Foreign Born 10 11.10 0.00 12.70 0.00 -- --
Total Workers at Place of Residence11 130,873,649 33,855 142,959,834 64,417 -- Yes
Table 2. Mode to Work
Table 2. Mode to Work 12 CTPP2000 2006-2010 ACS Is Change Significant in number?** CTPP2000 2006-2010 ACS Is Change Significant in number?**
Number Percent MOE(+/-)* Number Percent MOE(+/-)* Number Percent MOE(+/-)* Number Percent MOE(+/-)*
At Place of Residence At Place of Work
Total Workers 128,279,235 100.0 33,806 139,255,035 100.0 120,716 Yes 128,168,920 100.0 33,803 -- -- -- --
Drove alone 97,102,050 75.7 32,267 105,840,717 76.0 113,013 Yes 97,054,075 75.7 32,264 -- -- -- --
2-person Carpool 12,097,345 9.4 13,767 11,115,428 8.0 37,380 Yes 12,087,075 9.4 13,762 -- -- -- --
3-or-more-person Carpool 3,536,715 2.8 7,561 3,302,878 2.4 61,412 Yes 3,530,680 2.8 7,555 -- -- -- --
Public Transportation 5,867,562 4.6 9,698 6,872,730 4.9 18,857 Yes 5,859,294 4.6 9,692 -- -- -- --
Bike 488,490 0.4 2,825 716,535 0.5 7,080 Yes 487,420 0.4 2,822 -- -- -- --
Walked 3,758,980 2.9 7,792 3,962,070 2.8 17,751 Yes 3,745,510 2.9 7,778 -- -- -- --
Taxi, Motorcycle and Other means 1,243,855 1.0 4,503 1,684,953 1.2 14,400 Yes 1,220,590 1.0 4,461 -- -- -- --
Worked at Home 4,184,230 3.3 8,215 5,759,724 4.1 19,688 Yes 4,184,230 3.3 8,215 -- -- -- --
Table 3. Mean Travel Time by Mode to Work
Table 3. Mean Travel Time by Mode to Work 13 Census 2000 2006-2010 ACS Is Change Significant in Minutes?**
Minutes MOE(+/-) Minutes MOE(+/-)
Total Workers (does not include workers who worked at home) 25.5 0.0 25.2 0.0 --
Drove alone 24.1 0.0 23.9 0.0 --
Carpooled 28.5 0.0 28.1 0.2 Yes
Public Transportation 48.7 0.1 47.8 0.2 Yes
Taxi, Motorcycle, Walk, Bicycle and Other means 17.9 0.0 17.2 0.1 Yes

Notes:

* The coefficient of variation (CV) can be derived by the standard error (SE) divided by the estimate, while SE = MOE/1.645.
** The z-value of the difference of the two estimates are used to determined if the two estimates are significantly different at 90% confidence level.

1 Census 2000 SF3 Table P1, 2006-2010 ACS Table B01003 and Census 2010 SF1 Table QT-P1

2 Census 2000 SF3 Table P9, 2006-2010 ACS Table B09016 and Census 2010 Table QT-P12

3 Census 2000 SF3 Table P10, 2006-2010 ACS Table B19001 and Census 2010 Table QT-P11

4 Census 2000 SF3 Table P9 divided Census 2000 SF3 Table P10, 2006-2010 ACS Table B09016 divided 2006-2010 ACS Table B19001 and Census 2010 Table QT-P11

5 CTPP2000 Table 1-090 and 2006-2010 ACS Table B19025

6 Census 2000 SF3 Table H46 and 2006-2010 ACS Table B25046

7 Census 2000 SF3 Table P87 and 2006 -2010 ACS Table B17001

8 Census 2000 SF3 Table P6, 2006-2010 ACS Table B02001 and Census 2010 SF1 Table QT-P3

9 Census 2000 SF3 Table P8, 2006-2010 ACS Table B01001 and Census 2010 Table QT-P1

10 Census 2000 SF3 Table P21 and 2006-2010 ACS Table B06003

11 Census 2000 SF3 Table P43 and 2006-2010 ACS Table B23001

12 Residence place information is from CTPP2000 Table 1-002 and 2006- 2010 ACS Table B08301 and workplace information is from CTPP2000 Table 2-002 and 2006-2010 ACS Table B08406

13 CTPP2000 Table 1-118 and 2006-2010 ACS Table C08136

Updated: 11/20/2012
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