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| Table 1. Selected Characteristics | Census 2000 | 2007-2009 ACS | 2010 Census | 2010-2012 ACS | Is the numeric change between Census 2000 and 2010-2012 ACS Significant? ** |
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|---|---|---|---|---|---|---|---|---|
| Value | MOE(+/-) | Value | MOE(+/-) | Value | Value | MOE(+/-) | ||
| Total Persons 1 | 2,926,324 | -- | 2,993,524 | 0 | 3,046,355 | 3,062,869 | 0 | -- |
| Persons in Households 2 | 2,821,939 | 1,284 | 2,888,012 | -- | 2,948,243 | 2,963,135 | -- | -- |
| Total Households 3 | 1,150,197 | 1,121 | 1,220,711 | 4,259 | 1,221,576 | 1,224,399 | 3,238 | Yes |
| Average Number of Persons per Household 4 | 2.45 | 0.00 | 2.37 | 0.01 | 2.41 | 2.42 | 0.01 | Yes |
| Average Household Income 5 | $49,080 | $162 | $61,376 | $445 | -- | $64,363 | $460 | Yes |
| Average Number of Vehicles per Household 6 | 1.89 | 0.01 | 1.96 | 0.01 | -- | 1.94 | 0.01 | Yes |
| Percent of Persons in Poverty 7 | 9.10 | 0.10 | 11.50 | 0.25 | -- | 12.70 | 0.25 | Yes |
| Percent Minority 8 | 6.00 | 0.10 | 7.50 | 0.10 | 8.70 | 8.50 | 0.12 | Yes |
| Percent of Persons 65 and Over 9 | 14.90 | 0.10 | 14.70 | 0.13 | 14.90 | 15.00 | 0.12 | No |
| Percent of Persons Foreign Born 10 | 3.10 | 0.00 | 3.80 | 0.09 | -- | 4.50 | 0.10 | Yes |
| Total Workers at Place of Residence11 | 1,491,675 | 3,460 | 1,574,675 | 6,690 | -- | 1,547,702 | 5,429 | Yes |
| Table 2a. Mode to Work 12 | CTPP2000 | 2007-2009 ACS | 2010-2012 ACS | Is the numeric change between CTPP 2000 and 2010-2012 ACS Significant? ** |
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|---|---|---|---|---|---|---|---|---|---|---|
| Number | Percent | MOE(+/-)* | Number | Percent | MOE(+/-)* | Number | Percent | MOE(+/-)* | ||
| Total Workers | 1,469,765 | 100.0 | 3,461 | 1,531,008 | 100.0 | 5,482 | 1,519,767 | 100.0 | 5,711 | Yes |
| Drove alone | 1,155,010 | 78.6 | 3,383 | 1,203,460 | 78.6 | 6,911 | 1,214,572 | 79.9 | 5,237 | Yes |
| 2-person Carpool | 128,890 | 8.8 | 1,420 | 123,074 | 8.0 | 2,967 | 111,916 | 7.4 | 2,946 | Yes |
| 3-or-more-person Carpool | 29,805 | 2.0 | 695 | 34,428 | 2.2 | 1,624 | 29,138 | 1.9 | 1,477 | No |
| Transit | 14,290 | 1.0 | 482 | 17,327 | 1.1 | 1,495 | 16,556 | 1.1 | 1,449 | Yes |
| Bike | 5,245 | 0.4 | 293 | 6,352 | 0.4 | 769 | 7,541 | 0.5 | 816 | Yes |
| Walked | 58,090 | 4.0 | 965 | 60,816 | 4.0 | 2,105 | 53,569 | 3.5 | 1,901 | Yes |
| Taxi, Motorcycle and Other means | 8,650 | 0.6 | 376 | 12,574 | 0.8 | 931 | 15,324 | 1.0 | 1,023 | Yes |
| Worked at Home | 69,785 | 4.7 | 1,056 | 72,977 | 4.8 | 2,290 | 71,151 | 4.7 | 1,797 | No |
| Table 2b. Mode to Work 12 | CTPP2000 | 2007-2009 ACS | 2010-2012 ACS | Is the numeric change between CTPP 2000 and 2010-2012 ACS Significant? ** |
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|---|---|---|---|---|---|---|---|---|---|---|
| Number | Percent | MOE(+/-)* | Number | Percent | MOE(+/-)* | Number | Percent | MOE(+/-)* | ||
| At Place of Work | ||||||||||
| Total Workers | 1,463,560 | 100.0 | 3,461 | 1,527,695 | 100.0 | 6,339 | 1,522,975 | 100.0 | 5,644 | Yes |
| Drove alone | 1,149,875 | 78.6 | 3,381 | 1,200,286 | 78.6 | 7,556 | 1,214,784 | 79.8 | 5,003 | Yes |
| 2-person Carpool | 127,910 | 8.7 | 1,415 | 121,847 | 8.0 | 3,039 | 112,683 | 7.4 | 2,998 | Yes |
| 3-or-more-person Carpool | 29,535 | 2.0 | 692 | 34,653 | 2.3 | 1,584 | 29,845 | 2.0 | 1,517 | No |
| Transit | 14,140 | 1.0 | 480 | 17,626 | 1.2 | 1,500 | 16,728 | 1.1 | 1,482 | Yes |
| Bike | 5,285 | 0.4 | 294 | 6,473 | 0.4 | 789 | 7,586 | 0.5 | 815 | Yes |
| Walked | 58,080 | 4.0 | 965 | 60,688 | 4.0 | 2,070 | 54,004 | 3.5 | 1,872 | Yes |
| Taxi, Motorcycle and Other means | 8,950 | 0.6 | 382 | 13,145 | 0.9 | 910 | 16,194 | 1.1 | 1,112 | Yes |
| Worked at Home | 69,785 | 4.8 | 1,056 | 72,977 | 4.8 | 2,290 | 71,151 | 4.7 | 1,797 | No |
| Table 3. Mean Travel Time by Mode to Work 13 | Census 2000 | 2007-2009 ACS | 2010-2012 ACS | Is the change in travel time between Census 2000 and 2010-2012 ACS Significant? ** |
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|---|---|---|---|---|---|---|---|
| Minutes | MOE(+/-) | Minutes | MOE(+/-) | Minutes | MOE(+/-) | ||
| At Place of Residence | |||||||
| Total Workers (does not include workers who worked at home) | 18.5 | 0.1 | 18.4 | 0.2 | 18.8 | 0.2 | Yes |
| Drove alone | 18.1 | 0.1 | 18.1 | 0.2 | 18.7 | 0.2 | Yes |
| Carpooled | 23.2 | 0.2 | 23.3 | 0.9 | 22.7 | 0.9 | No |
| Transit | 28.6 | 0.8 | 29.0 | 4.2 | 27.4 | 3.6 | No |
| Taxi, Motorcycle, Walk, Bicycle and Other means | 12.0 | 0.3 | 10.6 | 0.7 | 12.1 | 0.7 | No |
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; 2007-2009 ACS Table B01003; 2010-2012 ACS Table B01003
2 Census 2000 SF3 Table P9; 2007-2009 ACS Table B09016; 2010-2012 ACS Table B01003 minus Table B26001
3 Census 2000 SF3 Table P10; 2007-2009 ACS Table B19001; 2010-2012 ACS Table B19001
4 Census 2000 SF3 Table P9 divided Census 2000 SF3 Table P10; 2007-2009 ACS Table B09016 divided 2007-2009 ACS Table B19001; 2010-2012 ACS Table S1101
5 CTPP2000 Table 1-090; 2007-2009 ACS Table B19025; 2010-2012 ACS Table B19025
6 Census 2000 SF3 Table H46; 2007-2009 ACS Table B25046; 2010-2012 ACS Table B25046
7 Census 2000 SF3 Table P87; 2007 -2009 ACS Table B17001; 2010-2012 ACS Table B17001
8 Census 2000 SF3 Table P6; 2007-2009 ACS Table B02001; 2010-2012 ACS Table B02001
9 Census 2000 SF3 Table P8; 2007-2009 ACS Table B01001; 2010-2012 ACS Table B01001
10 Census 2000 SF3 Table P21; 2007-2009 ACS Table B06003; 2010-2012 ACS Table B06003
11 Census 2000 SF3 Table P43; 2007-2009 ACS Table B23001; 2010-2012 ACS Table B23025
12 Residence place information is from CTPP2000 Table 1-002; 2007- 2009 ACS Table B08301; 2010-2012 ACS Table B08301. Workplace information is from CTPP2000 Table 2-002; 2007-2009 ACS Table B08406; 2010-2012 ACS Table B08601
13 CTPP2000 1-118; 2007-2009 ACS Table C08136; 2010-2012 ACS Table C08136
