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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 | 33,871,648 | -- | 36,589,387 | 0 | 37,253,956 | 37,686,586 | 0 | -- |
| Persons in Households 2 | 33,052,189 | 4,605 | 35,741,026 | -- | 36,434,140 | 36,870,410 | -- | -- |
| Total Households 3 | 11,512,020 | 4,190 | 12,198,310 | 10,485 | 12,577,498 | 12,474,950 | 11,248 | Yes |
| Average Number of Persons per Household 4 | 2.87 | 0.00 | 2.93 | 0.01 | 2.90 | 2.96 | 0.01 | Yes |
| Average Household Income 5 | $65,630 | $92 | $83,156 | $252 | -- | $82,916 | $233 | Yes |
| Average Number of Vehicles per Household 6 | 1.74 | 0.00 | 1.87 | 0.00 | -- | 1.84 | 0.00 | -- |
| Percent of Persons in Poverty 7 | 14.20 | 0.00 | 13.30 | 0.11 | -- | 16.40 | 0.10 | Yes |
| Percent Minority 8 | 40.60 | 0.00 | 38.20 | 0.10 | 42.40 | 37.50 | 0.11 | Yes |
| Percent of Persons 65 and Over 9 | 10.60 | 0.00 | 11.10 | 0.04 | 11.40 | 11.70 | 0.04 | Yes |
| Percent of Persons Foreign Born 10 | 26.20 | 0.00 | 27.00 | 0.08 | -- | 27.10 | 0.08 | Yes |
| Total Workers at Place of Residence11 | 14,867,605 | 14,873 | 17,195,518 | 25,561 | -- | 16,628,816 | 21,855 | 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 | 14,525,320 | 100.0 | 14,833 | 16,360,128 | 100.0 | 21,132 | 16,145,615 | 100.0 | 23,010 | Yes |
| Drove alone | 10,432,460 | 71.8 | 13,836 | 11,929,838 | 72.9 | 23,784 | 11,828,325 | 73.3 | 25,673 | Yes |
| 2-person Carpool | 1,564,905 | 10.8 | 6,291 | 1,448,349 | 8.9 | 16,147 | 1,374,129 | 8.5 | 11,589 | Yes |
| 3-or-more-person Carpool | 548,405 | 3.8 | 3,783 | 476,139 | 2.9 | 7,795 | 439,765 | 2.7 | 7,833 | Yes |
| Transit | 726,145 | 5.0 | 4,341 | 858,405 | 5.2 | 10,814 | 833,974 | 5.2 | 10,084 | Yes |
| Bike | 120,565 | 0.8 | 1,785 | 157,062 | 1.0 | 4,489 | 175,514 | 1.1 | 5,296 | Yes |
| Walked | 414,580 | 2.9 | 3,295 | 457,765 | 2.8 | 8,046 | 441,097 | 2.7 | 7,406 | Yes |
| Taxi, Motorcycle and Other means | 161,215 | 1.1 | 2,063 | 227,129 | 1.4 | 5,351 | 206,380 | 1.3 | 4,648 | Yes |
| Worked at Home | 557,035 | 3.8 | 3,812 | 805,441 | 4.9 | 8,615 | 846,431 | 5.2 | 9,067 | 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 | 14,506,500 | 100.0 | 14,830 | 16,358,771 | 100.0 | 21,428 | 16,142,909 | 100.0 | 22,698 | Yes |
| Drove alone | 10,425,215 | 71.9 | 13,834 | 11,933,364 | 72.9 | 24,052 | 11,831,077 | 73.3 | 25,431 | Yes |
| 2-person Carpool | 1,562,975 | 10.8 | 6,288 | 1,447,881 | 8.9 | 15,943 | 1,374,007 | 8.5 | 11,776 | Yes |
| 3-or-more-person Carpool | 546,970 | 3.8 | 3,778 | 475,880 | 2.9 | 7,641 | 439,976 | 2.7 | 7,604 | Yes |
| Transit | 723,615 | 5.0 | 4,334 | 857,549 | 5.2 | 10,887 | 832,204 | 5.2 | 10,169 | Yes |
| Bike | 120,455 | 0.8 | 1,784 | 157,020 | 1.0 | 4,459 | 175,342 | 1.1 | 5,262 | Yes |
| Walked | 412,640 | 2.8 | 3,288 | 456,247 | 2.8 | 8,031 | 439,311 | 2.7 | 7,441 | Yes |
| Taxi, Motorcycle and Other means | 157,590 | 1.1 | 2,040 | 225,389 | 1.4 | 5,472 | 204,561 | 1.3 | 4,612 | Yes |
| Worked at Home | 557,035 | 3.8 | 3,812 | 805,441 | 4.9 | 8,615 | 846,431 | 5.2 | 9,067 | 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) | 27.7 | 0.0 | 27.0 | 0.1 | 27.2 | 0.1 | Yes |
| Drove alone | 26.3 | 0.0 | 25.6 | 0.1 | 25.8 | 0.1 | Yes |
| Carpooled | 30.4 | 0.1 | 30.4 | 0.4 | 30.2 | 0.4 | No |
| Transit | 48.2 | 0.2 | 47.0 | 0.9 | 47.5 | 0.8 | No |
| Taxi, Motorcycle, Walk, Bicycle and Other means | 19.5 | 0.2 | 18.5 | 0.4 | 19.2 | 0.4 | 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
