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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 | 1,281,666 | -- | 1,218,881 | -- | 1,223,348 | 1,226,873 | -- | -- |
| Persons in Households 2 | 1,240,996 | 803 | 1,180,330 | -- | 1,188,294 | 1,191,289 | -- | -- |
| Total Households 3 | 537,405 | 835 | 524,053 | 3,381 | 533,960 | 522,238 | 2,828 | Yes |
| Average Number of Persons per Household 4 | 2.31 | 0.01 | 2.25 | 0.01 | 2.23 | 2.28 | 0.01 | Yes |
| Average Household Income 5 | $52,735 | $289 | $66,882 | $1,011 | -- | $71,038 | $930 | Yes |
| Average Number of Vehicles per Household 6 | 1.41 | 0.01 | 1.48 | 0.02 | -- | 1.47 | 0.01 | Yes |
| Percent of Persons in Poverty 7 | 11.20 | 0.10 | 12.60 | 0.46 | -- | 12.80 | 0.36 | Yes |
| Percent Minority 8 | 15.70 | 0.10 | 17.10 | 0.10 | 18.50 | 18.70 | 0.10 | Yes |
| Percent of Persons 65 and Over 9 | 17.80 | 0.10 | 16.80 | 0.25 | 16.80 | 16.80 | 0.21 | Yes |
| Percent of Persons Foreign Born 10 | 3.80 | 0.10 | 4.50 | 0.16 | -- | 4.90 | 0.16 | Yes |
| Total Workers at Place of Residence11 | 592,576 | 2,284 | 606,390 | 4,193 | -- | 597,668 | 3,347 | 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 | 582,360 | 100.0 | 2,281 | 587,412 | 100.0 | 4,021 | 584,434 | 100.0 | 3,364 | No |
| Drove alone | 419,830 | 72.1 | 2,150 | 417,771 | 71.1 | 4,124 | 418,401 | 71.6 | 3,660 | No |
| 2-person Carpool | 50,010 | 8.6 | 887 | 48,825 | 8.3 | 2,114 | 47,554 | 8.1 | 1,811 | Yes |
| 3-or-more-person Carpool | 8,505 | 1.5 | 372 | 8,954 | 1.5 | 886 | 8,254 | 1.4 | 900 | No |
| Transit | 60,610 | 10.4 | 972 | 57,879 | 9.9 | 2,026 | 55,172 | 9.4 | 1,956 | Yes |
| Bike | 895 | 0.2 | 121 | 2,015 | 0.3 | 324 | 2,589 | 0.4 | 398 | Yes |
| Walked | 24,005 | 4.1 | 621 | 28,074 | 4.8 | 1,790 | 24,356 | 4.2 | 1,344 | No |
| Taxi, Motorcycle and Other means | 3,935 | 0.7 | 253 | 4,141 | 0.7 | 492 | 6,144 | 1.1 | 740 | Yes |
| Worked at Home | 14,585 | 2.5 | 486 | 19,753 | 3.4 | 1,313 | 21,964 | 3.8 | 1,294 | 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 | 682,720 | 100.0 | 2,285 | 684,555 | 100.0 | 5,114 | 675,757 | 100.0 | 4,483 | Yes |
| Drove alone | 504,735 | 73.9 | 2,238 | 499,678 | 73.0 | 4,585 | 496,858 | 73.5 | 4,511 | Yes |
| 2-person Carpool | 59,605 | 8.7 | 965 | 59,084 | 8.6 | 2,162 | 54,131 | 8.0 | 2,050 | Yes |
| 3-or-more-person Carpool | 10,875 | 1.6 | 420 | 10,648 | 1.6 | 929 | 10,464 | 1.5 | 1,019 | No |
| Transit | 62,960 | 9.2 | 990 | 60,935 | 8.9 | 2,046 | 59,434 | 8.8 | 2,027 | Yes |
| Bike | 895 | 0.1 | 121 | 2,043 | 0.3 | 322 | 2,569 | 0.4 | 395 | Yes |
| Walked | 24,115 | 3.5 | 622 | 27,841 | 4.1 | 1,706 | 24,340 | 3.6 | 1,361 | No |
| Taxi, Motorcycle and Other means | 4,945 | 0.7 | 284 | 4,573 | 0.7 | 634 | 5,997 | 0.9 | 690 | Yes |
| Worked at Home | 14,585 | 2.1 | 486 | 19,753 | 2.9 | 1,313 | 21,964 | 3.3 | 1,294 | 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) | 25.3 | 0.1 | 25.2 | 0.3 | 26.1 | 0.3 | Yes |
| Drove alone | 24.1 | 0.1 | 24.0 | 0.4 | 25.1 | 0.4 | Yes |
| Carpooled | 25.1 | 0.4 | 25.1 | 1.6 | 24.6 | 1.4 | No |
| Transit | 37.8 | 0.4 | 38.5 | 2.1 | 39.3 | 2.2 | No |
| Taxi, Motorcycle, Walk, Bicycle and Other means | 16.1 | 0.5 | 17.6 | 1.8 | 18.5 | 1.6 | Yes |
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
