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Geographic Area: Illinois FIPS: 17

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Table 1. Selected Characteristics
Table 1. Selected Characteristics Census 2000 2006-2010 ACS 2010 Census Is Change between Census 2000 and 2006-2010 ACS Significant in Number?**
Value MOE(+/-) Value MOE(+/-)
Total Persons 1 12,419,293 -- 12,745,359 0 12,830,632 --
Persons in Households 2 12,096,973 2,267 12,437,349 0 12,528,859 Yes
Total Households 3 4,592,740 2,123 4,769,951 10,573 4,836,972 Yes
Average Number of Persons per Household 4 2.63 0.00 2.61 0.01 2.59 Yes
Average Household Income 5 $61,545 $105 $75,140 $405 -- Yes
Average Number of Vehicles per Household 6 1.62 0.00 1.69 0.01 -- Yes
Percent of Persons in Poverty 7 10.70 0.00 12.60 0.00 -- --
Percent Minority 8 26.50 0.10 28.30 0.00 28.50 Yes
Percent of Persons 65 and Over 9 12.10 0.00 12.30 0.00 12.50 --
Percent of Persons Foreign Born 10 12.30 0.00 13.60 0.00 -- --
Total Workers at Place of Residence11 5,855,205 7,118 6,084,304 10,674 -- Yes
Table 2. Mode to Work
Table 2. Mode to Work 12 CTPP2000 2006-2010 ACS Is Change Significant in number?** CTPP2000 2006-2010 ACS Is Change Significant in number?**
Number Percent MOE(+/-)* Number Percent MOE(+/-)* Number Percent MOE(+/-)* Number Percent MOE(+/-)*
At Place of Residence At Place of Work
Total Workers 5,745,730 100.0 7,110 5,930,230 100.0 10,704 Yes 5,743,055 100.0 7,109 5,923,120 100.0 11,534 Yes
Drove alone 4,207,340 73.2 6,749 4,366,869 73.6 12,032 Yes 4,199,140 73.1 6,746 4,356,228 73.5 12,352 Yes
2-person Carpool 484,650 8.4 2,761 430,807 7.3 5,006 Yes 482,995 8.4 2,757 429,815 7.3 4,959 Yes
3-or-more-person Carpool 140,760 2.4 1,509 109,292 1.8 7,567 Yes 139,760 2.4 1,504 109,596 1.9 3,103 Yes
Public Transportation 483,525 8.4 2,758 515,963 8.7 5,036 Yes 487,665 8.5 2,770 519,809 8.8 5,114 Yes
Bike 18,405 0.3 549 31,856 0.5 1,090 Yes 18,375 0.3 548 31,709 0.5 1,081 Yes
Walked 180,120 3.1 1,705 181,617 3.1 3,467 No 180,395 3.1 1,706 180,528 3.0 3,482 No
Taxi, Motorcycle and Other means 54,435 0.9 942 61,420 1.0 1,972 Yes 58,235 1.0 974 63,029 1.1 2,087 Yes
Worked at Home 176,490 3.1 1,688 232,406 3.9 2,870 Yes 176,490 3.1 1,688 232,406 3.9 2,870 Yes
Table 3. Mean Travel Time by Mode to Work
Table 3. Mean Travel Time by Mode to Work 13 Census 2000 2006-2010 ACS Is Change Significant in Minutes?**
Minutes MOE(+/-) Minutes MOE(+/-)
Total Workers (does not include workers who worked at home) 28.0 0.0 28.1 0.1 Yes
Drove alone 26.0 0.0 26.2 0.1 Yes
Carpooled 29.9 0.1 29.2 0.6 Yes
Public Transportation 49.7 0.2 48.7 0.8 Yes
Taxi, Motorcycle, Walk, Bicycle and Other means 16.9 0.2 17.0 0.5 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, 2006-2010 ACS Table B01003 and Census 2010 SF1 Table QT-P1

2 Census 2000 SF3 Table P9, 2006-2010 ACS Table B09016 and Census 2010 Table QT-P12

3 Census 2000 SF3 Table P10, 2006-2010 ACS Table B19001 and Census 2010 Table QT-P11

4 Census 2000 SF3 Table P9 divided Census 2000 SF3 Table P10, 2006-2010 ACS Table B09016 divided 2006-2010 ACS Table B19001 and Census 2010 Table QT-P11

5 CTPP2000 Table 1-090 and 2006-2010 ACS Table B19025

6 Census 2000 SF3 Table H46 and 2006-2010 ACS Table B25046

7 Census 2000 SF3 Table P87 and 2006 -2010 ACS Table B17001

8 Census 2000 SF3 Table P6, 2006-2010 ACS Table B02001 and Census 2010 SF1 Table QT-P3

9 Census 2000 SF3 Table P8, 2006-2010 ACS Table B01001 and Census 2010 Table QT-P1

10 Census 2000 SF3 Table P21 and 2006-2010 ACS Table B06003

11 Census 2000 SF3 Table P43 and 2006-2010 ACS Table B23001

12 Residence place information is from CTPP2000 Table 1-002 and 2006- 2010 ACS Table B08301 and workplace information is from CTPP2000 Table 2-002 and 2006-2010 ACS Table B08406

13 CTPP2000 Table 1-118 and 2006-2010 ACS Table C08136

Updated: 11/20/2012
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