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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 | 12,419,293 | -- | 12,844,259 | 0 | 12,830,632 | 12,858,490 | 0 | -- |
| Persons in Households 2 | 12,096,973 | 2,267 | 12,499,194 | -- | 12,528,859 | 12,558,584 | -- | -- |
| Total Households 3 | 4,592,740 | 2,123 | 4,766,343 | 7,846 | 4,836,972 | 4,759,131 | 8,505 | Yes |
| Average Number of Persons per Household 4 | 2.63 | 0.00 | 2.62 | 0.01 | 2.59 | 2.64 | 0.01 | Yes |
| Average Household Income 5 | $61,545 | $105 | $74,765 | $337 | -- | $75,337 | $353 | Yes |
| Average Number of Vehicles per Household 6 | 1.62 | 0.00 | 1.69 | 0.00 | -- | 1.67 | 0.01 | Yes |
| Percent of Persons in Poverty 7 | 10.70 | 0.00 | 12.60 | 0.16 | -- | 14.50 | 0.15 | Yes |
| Percent Minority 8 | 26.50 | 0.10 | 28.00 | 0.11 | 28.50 | 27.40 | 0.11 | Yes |
| Percent of Persons 65 and Over 9 | 12.10 | 0.00 | 12.20 | 0.06 | 12.50 | 12.80 | 0.07 | Yes |
| Percent of Persons Foreign Born 10 | 12.30 | 0.00 | 13.50 | 0.12 | -- | 13.90 | 0.10 | Yes |
| Total Workers at Place of Residence11 | 5,855,205 | 7,118 | 6,259,481 | 14,365 | -- | 5,980,364 | 11,030 | 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 | 5,745,730 | 100.0 | 7,110 | 6,018,460 | 100.0 | 12,713 | 5,855,550 | 100.0 | 11,330 | Yes |
| Drove alone | 4,207,340 | 73.2 | 6,749 | 4,404,267 | 73.2 | 13,320 | 4,304,657 | 73.5 | 13,461 | Yes |
| 2-person Carpool | 484,650 | 8.4 | 2,761 | 441,422 | 7.3 | 7,164 | 406,321 | 6.9 | 7,012 | Yes |
| 3-or-more-person Carpool | 140,760 | 2.4 | 1,509 | 110,484 | 1.8 | 3,865 | 110,164 | 1.9 | 3,435 | Yes |
| Transit | 483,525 | 8.4 | 2,758 | 539,565 | 9.0 | 7,018 | 509,669 | 8.7 | 6,506 | Yes |
| Bike | 18,405 | 0.3 | 549 | 33,655 | 0.6 | 1,779 | 36,363 | 0.6 | 1,784 | Yes |
| Walked | 180,120 | 3.1 | 1,705 | 190,926 | 3.2 | 4,626 | 183,712 | 3.1 | 4,229 | No |
| Taxi, Motorcycle and Other means | 54,435 | 0.9 | 942 | 63,287 | 1.1 | 2,511 | 60,617 | 1.0 | 2,633 | Yes |
| Worked at Home | 176,490 | 3.1 | 1,688 | 234,854 | 3.9 | 5,177 | 244,047 | 4.2 | 4,296 | 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 | 5,743,055 | 100.0 | 7,109 | 6,011,763 | 100.0 | 12,689 | 5,850,437 | 100.0 | 12,178 | Yes |
| Drove alone | 4,199,140 | 73.1 | 6,746 | 4,395,976 | 73.1 | 13,067 | 4,299,938 | 73.5 | 13,751 | Yes |
| 2-person Carpool | 482,995 | 8.4 | 2,757 | 439,555 | 7.3 | 7,206 | 403,361 | 6.9 | 7,049 | Yes |
| 3-or-more-person Carpool | 139,760 | 2.4 | 1,504 | 110,561 | 1.8 | 3,822 | 109,853 | 1.9 | 3,468 | Yes |
| Transit | 487,665 | 8.5 | 2,770 | 543,348 | 9.0 | 7,117 | 511,369 | 8.7 | 6,517 | Yes |
| Bike | 18,375 | 0.3 | 548 | 33,335 | 0.6 | 1,790 | 36,430 | 0.6 | 1,778 | Yes |
| Walked | 180,395 | 3.1 | 1,706 | 189,851 | 3.2 | 4,568 | 182,528 | 3.1 | 4,236 | No |
| Taxi, Motorcycle and Other means | 58,235 | 1.0 | 974 | 64,283 | 1.1 | 2,787 | 62,911 | 1.1 | 2,421 | Yes |
| Worked at Home | 176,490 | 3.1 | 1,688 | 234,854 | 3.9 | 5,177 | 244,047 | 4.2 | 4,296 | 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) | 28.0 | 0.0 | 28.2 | 0.1 | 28.0 | 0.1 | No |
| Drove alone | 26.0 | 0.0 | 26.3 | 0.2 | 26.2 | 0.2 | No |
| Carpooled | 29.9 | 0.1 | 29.3 | 0.7 | 28.6 | 0.6 | Yes |
| Transit | 49.7 | 0.2 | 49.1 | 1.0 | 48.2 | 0.9 | Yes |
| Taxi, Motorcycle, Walk, Bicycle and Other means | 16.9 | 0.2 | 16.9 | 0.6 | 17.9 | 0.7 | 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
