CENSUS TRANSPORTATION PLANNING PACKAGE (CTPP 2000) Table 1. Profile of Selected 1990 and 2000 Characteristics
Geographic Area: Illinois
Subject	1990 Census		Census 2000		Change 1990 to 2000
	Number	Percent	Number	Percent	Number	Percent
POPULATION
Total population	11,430,602	100.0	12,419,293	100.0	988,691	8.6
In households	11,145,365	97.5	12,096,973	97.4	951,608	8.5
In group quarters	285,237	2.5	322,320	2.6	37,083	13.0
HOUSEHOLD SIZE
Total households	4,197,720	100.0	4,592,740	100.0	395,020	9.4
1-person household	1,071,131	25.5	1,228,282	26.7	157,151	14.7
2-person household	1,273,998	30.3	1,404,072	30.6	130,074	10.2
3-person household	705,044	16.8	731,058	15.9	26,014	3.7
4-person household	640,343	15.3	664,243	14.5	23,900	3.7
5-or-more-person household	507,204	12.1	565,085	12.3	57,881	11.4
Mean number of persons per household	2.66	(X)	2.63	(X)	-0.02	(X)
VEHICLES AVAILABLE1
Total households	4,197,720	100.0	4,592,740	100.0	395,020	9.4
No vehicle available	569,493	13.6	533,954	11.6	-35,539	-6.2
1 vehicle available	1,463,195	34.9	1,619,811	35.3	156,616	10.7
2 vehicles available	1,542,078	36.7	1,739,480	37.9	197,402	12.8
3 vehicles available	457,919	10.9	515,208	11.2	57,289	12.5
4 vehicles available	124,858	3.0	135,175	2.9	10,317	8.3
5 or more vehicles available	40,177	1.0	49,112	1.1	8,935	22.2
Mean vehicles per household	1.58	(X)	1.62	(X)	0.04	(X)
WORKERS BY SEX1
Workers 16 years and over	5,351,411	100.0	5,745,730	100.0	394,319	7.4
Male	2,919,561	54.6	3,061,540	53.3	141,979	4.9
Female	2,431,850	45.4	2,684,195	46.7	252,345	10.4
MEANS OF TRANSPORTATION TO WORK
Workers 16 years and over	5,351,411	100.0	5,745,731	100.0	394,320	7.4
Drove alone	3,741,715	69.9	4,207,339	73.2	465,624	12.4
Carpooled	652,603	12.2	625,411	10.9	-27,192	-4.2
Public transportation (including taxicab)	538,071	10.1	497,632	8.7	-40,439	-7.5
Bicycle or walked	239,864	4.5	198,525	3.5	-41,339	-17.2
Motorcycle or other means	34,913	0.7	40,333	0.7	5,420	15.5
Worked at home	144,245	2.7	176,491	3.1	32,246	22.4
TRAVEL TIME TO WORK
Workers who did not work at home	5,207,166	100.0	5,569,240	100.0	362,074	7.0
Less than 5 minutes	188,846	3.6	183,600	3.3	-5,246	-2.8
5 to 9 minutes	619,687	11.9	587,746	10.6	-31,941	-5.2
10 to 14 minutes	747,632	14.4	743,149	13.3	-4,483	-0.6
15 to 19 minutes	741,765	14.2	748,578	13.4	6,813	0.9
20 to 29 minutes	938,307	18.0	1,002,104	18.0	63,797	6.8
30 to 44 minutes	1,045,405	20.1	1,151,059	20.7	105,654	10.1
45 or more minutes	925,524	17.8	1,153,004	20.7	227,480	24.6
Mean travel time to work (minutes)	25.1	(X)	28.0	(X)	2.9	(X)
TIME LEAVING HOME TO GO TO WORK
Workers who did not work at home	5,207,166	100.0	5,569,240	100.0	362,074	7.0
5:00 a.m. to 6:59 a.m.	1,496,426	28.7	1,599,298	28.7	102,872	6.9
7:00 a.m. to 7:59 a.m.	1,571,515	30.2	1,642,843	29.5	71,328	4.5
8:00 a.m. to 8:59 a.m.	836,308	16.1	854,930	15.4	18,622	2.2
9:00 a.m. to 9:59 a.m.	236,920	4.5	269,854	4.8	32,934	13.9
10:00 a.m. to 11:59 a.m.	150,601	2.9	178,331	3.2	27,730	18.4
12:00 p.m. to 11:59 p.m.	784,614	15.1	818,555	14.7	33,941	4.3
12:00 a.m. to 4:59 a.m.	130,782	2.5	205,429	3.7	74,647	57.1
1See the entry for this item in the Technical Notes in the root directory or state subdirectories (filename: tech_notes.txt). (X)Not applicable. Source:U.S. Census Bureau. Census of Population and Housing, 1990 and 2000 long-form (sample) data.

CENSUS TRANSPORTATION PLANNING PACKAGE (CTPP 2000) Table 2. Profile of Selected 2000 Characteristics
Geographic Area: Illinois
Subject	Census 2000
	Number	Percent
POPULATION BY AGE
Total population	12,419,293	100.0
Under 16 years	2,888,347	23.3
16 to 20 years	884,337	7.1
21 to 24 years	672,938	5.4
25 to 44 years	3,815,155	30.7
45 to 64 years	2,659,587	21.4
65 years and over	1,498,929	12.1
Mean age (years)	35.4	(X)
HOUSEHOLD INCOME IN 19991
Total households	4,592,740	100.0
Less than $15,000	635,784	13.8
$15,000 to 19,999	250,526	5.5
$20,000 to 24,999	267,286	5.8
$25,000 to 49,999	1,291,142	28.1
$50,000 to 74,999	952,940	20.7
$75,000 to 99,999	531,760	11.6
$100,000 or more	663,302	14.4
Mean household income (dollars)	61,544	(X)
Median household income (dollars)	46,590	(X)
Household Size by Vehicles Available1
Household Size		Mean vehicles per household	Vehicles available
			Total households	No vehicle	1 vehicle	2 vehicles	3 vehicles	4 or more vehicles
Total households		1.62	4,592,740	533,955	1,619,810	1,739,480	515,210	184,285
	Row percent	(X)	100.0	11.6	35.3	37.9	11.2	4.0
	Column percent	(X)	100.0	100.0	100.0	100.0	100.0	100.0
1-person household		0.90	1,228,280	295,895	800,580	107,570	16,810	7,430
	Row percent	(X)	100.0	24.1	65.2	8.8	1.4	0.6
	Column percent	(X)	26.7	55.4	49.4	6.2	3.3	4.0
2-person household		1.68	1,404,070	102,270	423,355	737,545	114,700	26,205
	Row percent	(X)	100.0	7.3	30.2	52.5	8.2	1.9
	Column percent	(X)	30.6	19.2	26.1	42.4	22.3	14.2
3-person household		1.94	731,060	51,295	173,110	318,735	154,320	33,595
	Row percent	(X)	100.0	7.0	23.7	43.6	21.1	4.6
	Column percent	(X)	15.9	9.6	10.7	18.3	30.0	18.2
4-or-more-person household		2.09	1,229,330	84,495	222,765	575,630	229,375	117,060
	Row percent	(X)	100.0	6.9	18.1	46.8	18.7	9.5
	Column percent	(X)	26.8	15.8	13.8	33.1	44.5	63.5
Means of Transportation to Work by Travel Time to Work1
Means of Transportation		Mean travel time to work (minutes)	Travel time to work
			Workers who did not work at home	Less than 10 minutes	10 to 19 minutes	20 to 29 minutes	30 to 44 minutes	45 or more minutes
Workers who did not work at home		28.0	5,569,240	771,345	1,491,725	1,002,105	1,151,060	1,153,005
	Row percent	(X)	100.0	13.9	26.8	18.0	20.7	20.7
	Column percent	(X)	100.0	100.0	100.0	100.0	100.0	100.0
Drove alone		26.0	4,207,340	599,145	1,213,955	813,930	859,750	720,555
	Row percent	(X)	100.0	14.2	28.9	19.3	20.4	17.1
	Column percent	(X)	75.5	77.7	81.4	81.2	74.7	62.5
Carpooled		29.9	625,410	64,415	163,490	111,265	142,930	143,310
	Row percent	(X)	100.0	10.3	26.1	17.8	22.9	22.9
	Column percent	(X)	11.2	8.4	11.0	11.1	12.4	12.4
Public transportation (including taxicab)		48.8	497,630	6,620	35,525	51,935	131,340	272,210
	Row percent	(X)	100.0	1.3	7.1	10.4	26.4	54.7
	Column percent	(X)	8.9	0.9	2.4	5.2	11.4	23.6
Bicycle or walked		12.4	198,525	93,000	68,735	19,585	10,815	6,390
	Row percent	(X)	100.0	46.8	34.6	9.9	5.4	3.2
	Column percent	(X)	3.6	12.1	4.6	2.0	0.9	0.6
Motorcycle or other means		38.1	40,335	8,165	10,015	5,390	6,230	10,535
	Row percent	(X)	100.0	20.2	24.8	13.4	15.4	26.1
	Column percent	(X)	0.7	1.1	0.7	0.5	0.5	0.9
1See the entry for this item in the Technical Notes in the root directory or state subdirectories (filename: tech_notes.txt). (X)Not applicable. Source:U.S. Census Bureau. Census of Population and Housing, 1990 and 2000 long-form (sample) data.