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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 | 4,041,769 | -- | 4,286,107 | 0 | 4,339,367 | 4,364,627 | 0 | -- |
| Persons in Households 2 | 3,926,781 | 1,352 | 4,162,926 | -- | 4,213,497 | 4,238,759 | -- | -- |
| Total Households 3 | 1,591,739 | 1,539 | 1,681,965 | 5,479 | 1,719,965 | 1,690,132 | 5,067 | Yes |
| Average Number of Persons per Household 4 | 2.47 | 0.00 | 2.48 | 0.01 | 2.45 | 2.51 | 0.01 | Yes |
| Average Household Income 5 | $45,245 | $143 | $55,285 | $454 | -- | $57,072 | $426 | Yes |
| Average Number of Vehicles per Household 6 | 1.72 | 0.00 | 1.80 | 0.01 | -- | 1.79 | 0.01 | Yes |
| Percent of Persons in Poverty 7 | 15.80 | 0.10 | 18.00 | 0.30 | -- | 19.20 | 0.29 | Yes |
| Percent Minority 8 | 10.00 | 0.10 | 11.20 | 0.06 | 12.20 | 12.10 | 0.08 | Yes |
| Percent of Persons 65 and Over 9 | 12.50 | 0.10 | 13.00 | 0.12 | 13.30 | 13.60 | 0.11 | Yes |
| Percent of Persons Foreign Born 10 | 2.00 | 0.00 | 2.90 | 0.08 | -- | 3.20 | 0.08 | Yes |
| Total Workers at Place of Residence11 | 1,817,381 | 4,047 | 1,945,018 | 8,714 | -- | 1,858,872 | 7,659 | 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 | 1,781,735 | 100.0 | 4,039 | 1,856,695 | 100.0 | 7,443 | 1,818,568 | 100.0 | 7,893 | Yes |
| Drove alone | 1,429,055 | 80.2 | 3,889 | 1,508,066 | 81.2 | 8,410 | 1,504,386 | 82.7 | 8,357 | Yes |
| 2-person Carpool | 178,385 | 10.0 | 1,671 | 160,405 | 8.6 | 3,753 | 142,211 | 7.8 | 3,052 | Yes |
| 3-or-more-person Carpool | 46,255 | 2.6 | 865 | 43,691 | 2.4 | 2,502 | 38,275 | 2.1 | 2,184 | Yes |
| Transit | 20,190 | 1.1 | 573 | 22,486 | 1.2 | 1,613 | 19,892 | 1.1 | 1,549 | No |
| Bike | 2,610 | 0.1 | 207 | 4,319 | 0.2 | 678 | 4,194 | 0.2 | 675 | Yes |
| Walked | 42,495 | 2.4 | 830 | 43,615 | 2.3 | 2,341 | 38,618 | 2.1 | 1,800 | Yes |
| Taxi, Motorcycle and Other means | 14,605 | 0.8 | 488 | 17,016 | 0.9 | 1,260 | 15,918 | 0.9 | 1,295 | No |
| Worked at Home | 48,145 | 2.7 | 883 | 57,097 | 3.1 | 2,438 | 55,074 | 3.0 | 2,344 | 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 | 1,786,840 | 100.0 | 4,040 | 1,877,555 | 100.0 | 8,776 | 1,839,800 | 100.0 | 8,783 | Yes |
| Drove alone | 1,438,950 | 80.5 | 3,895 | 1,530,303 | 81.5 | 9,039 | 1,525,376 | 82.9 | 8,510 | Yes |
| 2-person Carpool | 175,450 | 9.8 | 1,658 | 160,929 | 8.6 | 3,365 | 143,791 | 7.8 | 3,394 | Yes |
| 3-or-more-person Carpool | 45,190 | 2.5 | 855 | 43,067 | 2.3 | 2,479 | 37,911 | 2.1 | 2,320 | Yes |
| Transit | 18,415 | 1.0 | 548 | 21,313 | 1.1 | 1,460 | 18,909 | 1.0 | 1,636 | No |
| Bike | 2,675 | 0.1 | 209 | 4,296 | 0.2 | 681 | 4,233 | 0.2 | 671 | Yes |
| Walked | 43,035 | 2.4 | 835 | 43,510 | 2.3 | 2,395 | 38,390 | 2.1 | 1,858 | Yes |
| Taxi, Motorcycle and Other means | 14,975 | 0.8 | 494 | 17,040 | 0.9 | 1,347 | 16,116 | 0.9 | 1,281 | No |
| Worked at Home | 48,145 | 2.7 | 883 | 57,097 | 3.0 | 2,438 | 55,074 | 3.0 | 2,344 | 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) | 23.5 | 0.1 | 22.4 | 0.2 | 22.9 | 0.2 | Yes |
| Drove alone | 22.8 | 0.1 | 22.0 | 0.2 | 22.5 | 0.2 | Yes |
| Carpooled | 28.9 | 0.2 | 26.6 | 1.0 | 27.0 | 0.9 | Yes |
| Transit | 37.1 | 0.9 | 35.4 | 4.1 | 37.4 | 4.5 | No |
| Taxi, Motorcycle, Walk, Bicycle and Other means | 15.5 | 0.4 | 14.9 | 1.3 | 15.3 | 1.3 | 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
