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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 | 4,012,012 | -- | 4,496,251 | 0 | 4,625,364 | 4,677,636 | 0 | -- |
| Persons in Households 2 | 3,876,875 | 1,462 | 4,350,593 | -- | 4,486,210 | 4,538,583 | -- | -- |
| Total Households 3 | 1,534,334 | 1,772 | 1,713,058 | 4,927 | 1,801,181 | 1,774,128 | 6,356 | Yes |
| Average Number of Persons per Household 4 | 2.53 | 0.01 | 2.54 | 0.01 | 2.49 | 2.56 | 0.01 | Yes |
| Average Household Income 5 | $48,350 | $149 | $58,446 | $383 | -- | $59,130 | $423 | Yes |
| Average Number of Vehicles per Household 6 | 1.73 | 0.00 | 1.81 | 0.01 | -- | 1.79 | 0.01 | Yes |
| Percent of Persons in Poverty 7 | 14.10 | 0.10 | 16.00 | 0.30 | -- | 18.50 | 0.34 | Yes |
| Percent Minority 8 | 32.80 | 0.10 | 32.50 | 0.08 | 33.80 | 33.00 | 0.10 | Yes |
| Percent of Persons 65 and Over 9 | 12.10 | 0.10 | 13.40 | 0.12 | 13.70 | 14.20 | 0.12 | Yes |
| Percent of Persons Foreign Born 10 | 2.90 | 0.00 | 4.50 | 0.11 | -- | 4.80 | 0.10 | Yes |
| Total Workers at Place of Residence11 | 1,860,727 | 4,042 | 2,064,235 | 9,179 | -- | 2,013,363 | 10,274 | 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 | 1,822,970 | 100.0 | 4,035 | 1,981,198 | 100.0 | 9,308 | 1,970,757 | 100.0 | 10,127 | Yes |
| Drove alone | 1,447,340 | 79.4 | 3,892 | 1,610,869 | 81.3 | 9,486 | 1,629,537 | 82.7 | 9,967 | Yes |
| 2-person Carpool | 187,420 | 10.3 | 1,710 | 159,838 | 8.1 | 4,359 | 141,350 | 7.2 | 4,003 | Yes |
| 3-or-more-person Carpool | 68,440 | 3.8 | 1,049 | 52,403 | 2.6 | 2,752 | 42,600 | 2.2 | 2,364 | Yes |
| Transit | 11,995 | 0.7 | 442 | 13,886 | 0.7 | 1,218 | 10,662 | 0.5 | 1,220 | Yes |
| Bike | 3,875 | 0.2 | 252 | 4,929 | 0.2 | 868 | 6,754 | 0.3 | 966 | Yes |
| Walked | 42,565 | 2.3 | 830 | 36,855 | 1.9 | 2,243 | 39,987 | 2.0 | 2,132 | Yes |
| Taxi, Motorcycle and Other means | 23,105 | 1.3 | 613 | 26,291 | 1.3 | 1,734 | 26,626 | 1.4 | 1,835 | Yes |
| Worked at Home | 38,235 | 2.1 | 787 | 76,127 | 3.8 | 2,994 | 73,241 | 3.7 | 3,048 | Yes |
| 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 | 1,790,570 | 100.0 | 4,029 | 1,948,500 | 100.0 | 9,606 | 1,935,970 | 100.0 | 10,799 | Yes |
| Drove alone | 1,419,495 | 79.3 | 3,875 | 1,582,007 | 81.2 | 9,085 | 1,596,285 | 82.5 | 10,220 | Yes |
| 2-person Carpool | 184,510 | 10.3 | 1,698 | 158,537 | 8.1 | 4,772 | 140,292 | 7.2 | 4,186 | Yes |
| 3-or-more-person Carpool | 67,800 | 3.8 | 1,045 | 52,371 | 2.7 | 2,626 | 44,181 | 2.3 | 2,391 | Yes |
| Transit | 11,730 | 0.7 | 438 | 12,467 | 0.6 | 1,201 | 9,843 | 0.5 | 1,107 | Yes |
| Bike | 3,860 | 0.2 | 251 | 4,934 | 0.3 | 870 | 6,606 | 0.3 | 980 | Yes |
| Walked | 42,885 | 2.4 | 833 | 37,448 | 1.9 | 2,221 | 40,245 | 2.1 | 2,119 | Yes |
| Taxi, Motorcycle and Other means | 22,060 | 1.2 | 599 | 24,609 | 1.3 | 1,625 | 25,277 | 1.3 | 1,914 | Yes |
| Worked at Home | 38,235 | 2.1 | 787 | 76,127 | 3.9 | 2,994 | 73,241 | 3.8 | 3,048 | Yes |
| 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) | 24.3 | 0.1 | 23.2 | 0.2 | 23.6 | 0.2 | Yes |
| Drove alone | 23.6 | 0.1 | 22.8 | 0.3 | 23.4 | 0.2 | No |
| Carpooled | 28.6 | 0.2 | 26.6 | 1.1 | 26.6 | 1.1 | Yes |
| Transit | 48.4 | 1.6 | 37.7 | 4.9 | 40.2 | 7.0 | Yes |
| Taxi, Motorcycle, Walk, Bicycle and Other means | 19.7 | 0.4 | 18.9 | 1.6 | 17.9 | 1.5 | 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; 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
