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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 | 3,405,565 | -- | 3,503,285 | 0 | 3,574,097 | 3,584,561 | 0 | -- |
| Persons in Households 2 | 3,297,334 | 1,548 | 3,389,219 | -- | 3,455,945 | 3,466,728 | -- | -- |
| Total Households 3 | 1,302,227 | 1,341 | 1,326,092 | 3,566 | 1,371,087 | 1,355,973 | 3,713 | Yes |
| Average Number of Persons per Household 4 | 2.53 | 0.01 | 2.56 | 0.01 | 2.52 | 2.56 | 0.01 | Yes |
| Average Household Income 5 | $74,195 | $274 | $94,404 | $805 | -- | $95,032 | $855 | Yes |
| Average Number of Vehicles per Household 6 | 1.70 | 0.01 | 1.80 | 0.01 | -- | 1.77 | 0.01 | Yes |
| Percent of Persons in Poverty 7 | 7.90 | 0.10 | 9.00 | 0.27 | -- | 10.50 | 0.23 | Yes |
| Percent Minority 8 | 18.40 | 0.10 | 20.50 | 0.18 | 22.40 | 21.90 | 0.15 | Yes |
| Percent of Persons 65 and Over 9 | 13.80 | 0.10 | 13.70 | 0.13 | 14.20 | 14.50 | 0.13 | Yes |
| Percent of Persons Foreign Born 10 | 10.90 | 0.10 | 13.00 | 0.20 | -- | 13.60 | 0.19 | Yes |
| Total Workers at Place of Residence11 | 1,672,651 | 4,412 | 1,788,615 | 7,231 | -- | 1,756,477 | 6,608 | 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 | 1,640,825 | 100.0 | 4,409 | 1,717,932 | 100.0 | 7,650 | 1,717,595 | 100.0 | 6,855 | Yes |
| Drove alone | 1,312,700 | 80.0 | 4,295 | 1,357,164 | 79.0 | 7,338 | 1,354,414 | 78.9 | 6,759 | Yes |
| 2-person Carpool | 124,050 | 7.6 | 1,653 | 114,990 | 6.7 | 3,387 | 110,525 | 6.4 | 3,032 | Yes |
| 3-or-more-person Carpool | 30,345 | 1.8 | 829 | 27,766 | 1.6 | 1,931 | 31,816 | 1.9 | 2,068 | No |
| Transit | 64,245 | 3.9 | 1,201 | 77,090 | 4.5 | 2,353 | 79,028 | 4.6 | 2,572 | Yes |
| Bike | 2,875 | 0.2 | 256 | 4,550 | 0.3 | 653 | 4,878 | 0.3 | 652 | Yes |
| Walked | 44,350 | 2.7 | 1,000 | 50,347 | 2.9 | 2,032 | 50,802 | 3.0 | 1,996 | Yes |
| Taxi, Motorcycle and Other means | 10,835 | 0.7 | 497 | 17,202 | 1.0 | 1,466 | 16,011 | 0.9 | 1,590 | Yes |
| Worked at Home | 51,420 | 3.1 | 1,076 | 68,823 | 4.0 | 2,241 | 70,121 | 4.1 | 2,527 | 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 | 1,642,090 | 100.0 | 4,409 | 1,707,482 | 100.0 | 7,988 | 1,706,257 | 100.0 | 7,033 | Yes |
| Drove alone | 1,331,260 | 81.1 | 4,306 | 1,367,536 | 80.1 | 7,836 | 1,360,919 | 79.8 | 6,936 | Yes |
| 2-person Carpool | 125,745 | 7.7 | 1,664 | 115,343 | 6.8 | 3,242 | 111,480 | 6.5 | 3,184 | Yes |
| 3-or-more-person Carpool | 31,735 | 1.9 | 848 | 29,446 | 1.7 | 1,982 | 33,027 | 1.9 | 2,131 | No |
| Transit | 44,640 | 2.7 | 1,004 | 55,301 | 3.2 | 2,006 | 59,358 | 3.5 | 2,457 | Yes |
| Bike | 2,860 | 0.2 | 256 | 4,495 | 0.3 | 650 | 4,778 | 0.3 | 654 | Yes |
| Walked | 44,160 | 2.7 | 998 | 49,702 | 2.9 | 2,065 | 50,261 | 2.9 | 2,149 | Yes |
| Taxi, Motorcycle and Other means | 10,275 | 0.6 | 484 | 16,836 | 1.0 | 1,537 | 16,313 | 1.0 | 1,734 | Yes |
| Worked at Home | 51,420 | 3.1 | 1,076 | 68,823 | 4.0 | 2,241 | 70,121 | 4.1 | 2,527 | 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) | 24.4 | 0.1 | 24.7 | 0.2 | 24.8 | 0.2 | Yes |
| Drove alone | 23.2 | 0.1 | 23.4 | 0.2 | 23.6 | 0.2 | Yes |
| Carpooled | 24.9 | 0.3 | 24.7 | 1.1 | 25.4 | 1.0 | No |
| Transit | 56.0 | 0.8 | 55.2 | 2.6 | 53.7 | 2.6 | No |
| Taxi, Motorcycle, Walk, Bicycle and Other means | 16.1 | 0.5 | 15.5 | 1.0 | 15.0 | 1.0 | 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
