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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 | 3,400,578 | -- | 3,986,943 | -- | 4,092,459 | 4,178,437 | -- | -- |
| Persons in Households 2 | 3,358,430 | 826 | 3,940,759 | -- | 4,047,935 | 4,140,269 | -- | -- |
| Total Households 3 | 1,206,423 | 1,181 | 1,385,499 | 4,847 | 1,435,155 | 1,419,274 | 4,541 | Yes |
| Average Number of Persons per Household 4 | 2.78 | 0.01 | 2.84 | 0.01 | 2.82 | 2.92 | 0.01 | Yes |
| Average Household Income 5 | $59,815 | $208 | $74,794 | $761 | -- | $76,308 | $657 | Yes |
| Average Number of Vehicles per Household 6 | 1.62 | 0.00 | 1.69 | 0.01 | -- | 1.70 | 0.01 | Yes |
| Percent of Persons in Poverty 7 | 15.00 | 0.10 | 16.50 | 0.35 | -- | 19.00 | 0.34 | Yes |
| Percent Minority 8 | 41.40 | 0.10 | 38.20 | 0.33 | 43.40 | 37.40 | 0.30 | Yes |
| Percent of Persons 65 and Over 9 | 7.40 | 0.10 | 8.00 | 0.10 | 8.10 | 8.40 | 0.11 | Yes |
| Percent of Persons Foreign Born 10 | 22.20 | 0.10 | 24.60 | 0.24 | -- | 25.00 | 0.24 | Yes |
| Total Workers at Place of Residence11 | 1,547,524 | 3,716 | 1,965,396 | 8,600 | -- | 1,950,097 | 7,977 | 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 | 1,515,595 | 100.0 | 3,709 | 1,874,373 | 100.0 | 9,242 | 1,916,486 | 100.0 | 8,286 | Yes |
| Drove alone | 1,147,905 | 75.7 | 3,528 | 1,448,866 | 77.3 | 9,718 | 1,513,144 | 79.0 | 8,946 | Yes |
| 2-person Carpool | 161,775 | 10.7 | 1,588 | 169,957 | 9.1 | 4,775 | 162,280 | 8.5 | 6,191 | No |
| 3-or-more-person Carpool | 60,075 | 4.0 | 983 | 66,825 | 3.6 | 3,193 | 57,272 | 3.0 | 3,515 | No |
| Transit | 60,515 | 4.0 | 986 | 60,084 | 3.2 | 2,755 | 56,791 | 3.0 | 3,124 | Yes |
| Bike | 4,800 | 0.3 | 280 | 5,503 | 0.3 | 912 | 5,686 | 0.3 | 1,064 | No |
| Walked | 26,745 | 1.8 | 659 | 31,609 | 1.7 | 2,280 | 28,937 | 1.5 | 2,088 | Yes |
| Taxi, Motorcycle and Other means | 17,580 | 1.2 | 535 | 29,933 | 1.6 | 2,422 | 32,695 | 1.7 | 2,216 | Yes |
| Worked at Home | 36,195 | 2.4 | 766 | 61,596 | 3.3 | 2,708 | 59,681 | 3.1 | 2,610 | 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 | 1,705,365 | 100.0 | 3,731 | 2,152,710 | 100.0 | 10,808 | 2,199,099 | 100.0 | 10,747 | Yes |
| Drove alone | 1,310,620 | 76.9 | 3,631 | 1,686,996 | 78.4 | 11,154 | 1,759,710 | 80.0 | 10,693 | Yes |
| 2-person Carpool | 179,840 | 10.5 | 1,670 | 191,898 | 8.9 | 5,054 | 181,297 | 8.2 | 6,307 | No |
| 3-or-more-person Carpool | 62,590 | 3.7 | 1,003 | 71,846 | 3.3 | 3,484 | 61,154 | 2.8 | 3,455 | No |
| Transit | 64,435 | 3.8 | 1,017 | 67,439 | 3.1 | 2,737 | 64,805 | 2.9 | 3,403 | No |
| Bike | 4,785 | 0.3 | 280 | 5,520 | 0.3 | 921 | 5,818 | 0.3 | 1,092 | No |
| Walked | 26,580 | 1.6 | 657 | 31,660 | 1.5 | 2,441 | 28,609 | 1.3 | 1,967 | No |
| Taxi, Motorcycle and Other means | 20,310 | 1.2 | 575 | 35,755 | 1.7 | 2,266 | 38,025 | 1.7 | 2,517 | Yes |
| Worked at Home | 36,195 | 2.1 | 766 | 61,596 | 2.9 | 2,708 | 59,681 | 2.7 | 2,610 | 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) | 28.1 | 0.1 | 27.5 | 0.3 | 27.2 | 0.2 | Yes |
| Drove alone | 26.7 | 0.1 | 26.5 | 0.3 | 26.3 | 0.3 | Yes |
| Carpooled | 30.4 | 0.2 | 30.2 | 1.2 | 29.8 | 1.5 | No |
| Transit | 50.6 | 0.6 | 48.3 | 3.2 | 47.3 | 3.7 | No |
| Taxi, Motorcycle, Walk, Bicycle and Other means | 22.8 | 0.5 | 19.6 | 1.7 | 21.9 | 1.9 | 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
