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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 | 8,049,313 | -- | 9,230,696 | 0 | 9,535,483 | 9,654,079 | 0 | -- |
| Persons in Households 2 | 7,795,305 | 2,007 | 8,942,527 | -- | 9,278,237 | 9,398,382 | -- | -- |
| Total Households 3 | 3,133,282 | 2,385 | 3,597,670 | 8,690 | 3,745,155 | 3,699,308 | 8,664 | Yes |
| Average Number of Persons per Household 4 | 2.49 | 0.00 | 2.49 | 0.01 | 2.48 | 2.54 | 0.01 | Yes |
| Average Household Income 5 | $51,225 | $110 | $61,490 | $332 | -- | $62,134 | $347 | Yes |
| Average Number of Vehicles per Household 6 | 1.81 | 0.00 | 1.87 | 0.01 | -- | 1.84 | 0.01 | Yes |
| Percent of Persons in Poverty 7 | 12.30 | 0.00 | 15.20 | 0.20 | -- | 17.80 | 0.23 | Yes |
| Percent Minority 8 | 27.90 | 0.10 | 29.80 | 0.08 | 31.50 | 30.10 | 0.08 | Yes |
| Percent of Persons 65 and Over 9 | 12.00 | 0.00 | 12.50 | 0.08 | 12.90 | 13.40 | 0.08 | Yes |
| Percent of Persons Foreign Born 10 | 5.30 | 0.00 | 7.00 | 0.09 | -- | 7.60 | 0.08 | Yes |
| Total Workers at Place of Residence11 | 3,915,588 | 5,738 | 4,422,485 | 13,348 | -- | 4,283,787 | 13,176 | 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 | 3,837,775 | 100.0 | 5,734 | 4,219,731 | 100.0 | 12,061 | 4,191,203 | 100.0 | 12,530 | Yes |
| Drove alone | 3,046,665 | 79.4 | 5,568 | 3,380,203 | 80.1 | 11,790 | 3,401,879 | 81.2 | 12,857 | Yes |
| 2-person Carpool | 400,360 | 10.4 | 2,496 | 359,511 | 8.5 | 5,899 | 325,673 | 7.8 | 7,562 | Yes |
| 3-or-more-person Carpool | 137,905 | 3.6 | 1,490 | 120,487 | 2.9 | 4,208 | 103,544 | 2.5 | 3,999 | Yes |
| Transit | 29,720 | 0.8 | 696 | 43,535 | 1.0 | 2,426 | 46,518 | 1.1 | 2,109 | Yes |
| Bike | 6,840 | 0.2 | 334 | 9,889 | 0.2 | 1,147 | 10,525 | 0.3 | 1,090 | Yes |
| Walked | 74,145 | 1.9 | 1,097 | 79,668 | 1.9 | 3,992 | 73,819 | 1.8 | 2,785 | No |
| Taxi, Motorcycle and Other means | 39,185 | 1.0 | 799 | 46,743 | 1.1 | 2,793 | 43,906 | 1.0 | 2,588 | Yes |
| Worked at Home | 102,950 | 2.7 | 1,290 | 179,695 | 4.3 | 5,499 | 185,339 | 4.4 | 4,461 | 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 | 3,857,300 | 100.0 | 5,735 | 4,222,740 | 100.0 | 12,401 | 4,192,890 | 100.0 | 13,349 | Yes |
| Drove alone | 3,065,930 | 79.5 | 5,575 | 3,389,954 | 80.3 | 12,078 | 3,412,560 | 81.4 | 12,812 | Yes |
| 2-person Carpool | 403,995 | 10.5 | 2,506 | 358,977 | 8.5 | 6,007 | 325,090 | 7.8 | 7,504 | Yes |
| 3-or-more-person Carpool | 138,375 | 3.6 | 1,492 | 119,115 | 2.8 | 4,196 | 99,423 | 2.4 | 3,717 | Yes |
| Transit | 29,070 | 0.8 | 689 | 43,973 | 1.0 | 2,439 | 46,420 | 1.1 | 2,124 | Yes |
| Bike | 6,855 | 0.2 | 335 | 9,908 | 0.2 | 1,130 | 10,628 | 0.3 | 1,118 | Yes |
| Walked | 72,835 | 1.9 | 1,087 | 78,559 | 1.9 | 3,924 | 73,091 | 1.7 | 2,734 | No |
| Taxi, Motorcycle and Other means | 37,290 | 1.0 | 780 | 42,559 | 1.0 | 2,663 | 40,339 | 1.0 | 2,290 | Yes |
| Worked at Home | 102,950 | 2.7 | 1,290 | 179,695 | 4.3 | 5,499 | 185,339 | 4.4 | 4,461 | 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) | 24.0 | 0.0 | 23.2 | 0.1 | 23.5 | 0.2 | Yes |
| Drove alone | 23.3 | 0.0 | 22.7 | 0.1 | 23.0 | 0.2 | Yes |
| Carpooled | 27.8 | 0.1 | 26.8 | 0.7 | 27.1 | 0.9 | No |
| Transit | 40.7 | 0.8 | 40.4 | 3.5 | 40.0 | 3.0 | No |
| Taxi, Motorcycle, Walk, Bicycle and Other means | 19.2 | 0.3 | 18.4 | 1.2 | 18.8 | 1.2 | 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
