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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 | 9,519,338 | -- | 9,787,322 | -- | 9,818,605 | 9,892,525 | -- | -- |
| Persons in Households 2 | 9,344,582 | 2,133 | 9,596,346 | -- | 9,646,924 | 9,717,055 | -- | -- |
| Total Households 3 | 3,136,279 | 1,850 | 3,172,388 | 5,055 | 3,241,204 | 3,211,482 | 5,232 | Yes |
| Average Number of Persons per Household 4 | 2.98 | 0.00 | 3.02 | 0.01 | 2.98 | 3.03 | 0.01 | Yes |
| Average Household Income 5 | $61,810 | $175 | $79,695 | $530 | -- | $79,034 | $435 | Yes |
| Average Number of Vehicles per Household 6 | 1.61 | 0.00 | 1.76 | 0.01 | -- | 1.74 | 0.01 | Yes |
| Percent of Persons in Poverty 7 | 17.90 | 0.10 | 15.40 | 0.22 | -- | 18.30 | 0.18 | Yes |
| Percent Minority 8 | 51.40 | 0.10 | 48.40 | 0.23 | 49.70 | 46.50 | 0.23 | Yes |
| Percent of Persons 65 and Over 9 | 9.70 | 0.00 | 10.40 | 0.07 | 10.90 | 11.20 | 0.07 | Yes |
| Percent of Persons Foreign Born 10 | 36.20 | 0.10 | 35.70 | 0.16 | -- | 35.20 | 0.16 | Yes |
| Total Workers at Place of Residence11 | 3,957,917 | 7,831 | 4,670,177 | 12,668 | -- | 4,445,882 | 11,931 | 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 | 3,858,750 | 100.0 | 7,801 | 4,440,129 | 100.0 | 11,522 | 4,331,856 | 100.0 | 11,957 | Yes |
| Drove alone | 2,714,945 | 70.4 | 7,174 | 3,202,649 | 72.1 | 11,508 | 3,135,669 | 72.4 | 12,801 | Yes |
| 2-person Carpool | 436,480 | 11.3 | 3,323 | 384,182 | 8.7 | 7,261 | 352,781 | 8.1 | 5,685 | Yes |
| 3-or-more-person Carpool | 145,540 | 3.8 | 1,950 | 113,762 | 2.6 | 3,535 | 101,564 | 2.3 | 3,183 | Yes |
| Transit | 250,830 | 6.5 | 2,545 | 321,734 | 7.2 | 7,198 | 309,643 | 7.1 | 5,707 | Yes |
| Bike | 24,015 | 0.6 | 797 | 32,788 | 0.7 | 2,091 | 37,084 | 0.9 | 1,912 | Yes |
| Walked | 113,005 | 2.9 | 1,721 | 126,608 | 2.9 | 4,331 | 126,168 | 2.9 | 3,705 | Yes |
| Taxi, Motorcycle and Other means | 39,290 | 1.0 | 1,019 | 59,397 | 1.3 | 3,016 | 51,637 | 1.2 | 2,607 | Yes |
| Worked at Home | 134,645 | 3.5 | 1,876 | 199,009 | 4.5 | 4,864 | 217,310 | 5.0 | 4,849 | 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 | 4,016,280 | 100.0 | 7,847 | 4,575,883 | 100.0 | 14,525 | 4,488,522 | 100.0 | 14,103 | Yes |
| Drove alone | 2,846,955 | 70.9 | 7,275 | 3,310,124 | 72.3 | 13,663 | 3,258,895 | 72.6 | 13,128 | Yes |
| 2-person Carpool | 452,705 | 11.3 | 3,381 | 396,965 | 8.7 | 7,520 | 369,521 | 8.2 | 5,510 | Yes |
| 3-or-more-person Carpool | 148,465 | 3.7 | 1,969 | 120,257 | 2.6 | 3,762 | 109,469 | 2.4 | 3,617 | Yes |
| Transit | 256,920 | 6.4 | 2,575 | 329,477 | 7.2 | 7,174 | 318,845 | 7.1 | 5,859 | Yes |
| Bike | 24,165 | 0.6 | 800 | 32,746 | 0.7 | 2,085 | 36,810 | 0.8 | 1,937 | Yes |
| Walked | 112,360 | 2.8 | 1,716 | 125,889 | 2.8 | 4,203 | 125,331 | 2.8 | 3,549 | Yes |
| Taxi, Motorcycle and Other means | 40,065 | 1.0 | 1,029 | 61,416 | 1.3 | 3,090 | 52,341 | 1.2 | 2,600 | Yes |
| Worked at Home | 134,645 | 3.4 | 1,876 | 199,009 | 4.3 | 4,864 | 217,310 | 4.8 | 4,849 | 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) | 29.4 | 0.1 | 29.2 | 0.2 | 29.3 | 0.2 | No |
| Drove alone | 27.9 | 0.1 | 27.7 | 0.2 | 27.8 | 0.2 | No |
| Carpooled | 30.5 | 0.2 | 31.2 | 0.8 | 30.9 | 0.7 | No |
| Transit | 49.7 | 0.4 | 48.0 | 1.6 | 48.8 | 1.3 | No |
| Taxi, Motorcycle, Walk, Bicycle and Other means | 19.4 | 0.3 | 18.1 | 0.8 | 18.8 | 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
