CENSUS TRANSPORTATION PLANNING PACKAGE (CTPP 2000) Table 1. Profile of Selected 1990 and 2000 Characteristics
Geographic Area: Clay County, Iowa
Subject	1990 Census		Census 2000		Change 1990 to 2000
	Number	Percent	Number	Percent	Number	Percent
POPULATION
Total population	17,585	100.0	17,372	100.0	-213	-1.2
In households	17,341	98.6	17,077	98.3	-264	-1.5
In group quarters	244	1.4	295	1.7	51	20.9
HOUSEHOLD SIZE
Total households	7,009	100.0	7,274	100.0	265	3.8
1-person household	1,949	27.8	2,159	29.7	210	10.8
2-person household	2,461	35.1	2,572	35.4	111	4.5
3-person household	962	13.7	1,035	14.2	73	7.6
4-person household	964	13.8	960	13.2	-4	-0.4
5-or-more-person household	673	9.6	548	7.5	-125	-18.6
Mean number of persons per household	2.47	(X)	2.35	(X)	-0.13	(X)
VEHICLES AVAILABLE1
Total households	7,009	100.0	7,274	100.0	265	3.8
No vehicle available	502	7.2	518	7.1	16	3.2
1 vehicle available	2,305	32.9	2,289	31.5	-16	-0.7
2 vehicles available	2,907	41.5	2,919	40.1	12	0.4
3 vehicles available	986	14.1	1,082	14.9	96	9.7
4 vehicles available	200	2.9	337	4.6	137	68.5
5 or more vehicles available	109	1.6	129	1.8	20	18.3
Mean vehicles per household	1.78	(X)	1.84	(X)	0.07	(X)
WORKERS BY SEX1
Workers 16 years and over	8,382	100.0	9,015	100.0	633	7.6
Male	4,535	54.1	4,860	53.9	325	7.2
Female	3,847	45.9	4,155	46.1	308	8.0
MEANS OF TRANSPORTATION TO WORK
Workers 16 years and over	8,382	100.0	9,015	100.0	633	7.6
Drove alone	6,332	75.5	7,244	80.4	912	14.4
Carpooled	765	9.1	891	9.9	126	16.5
Public transportation (including taxicab)	52	0.6	52	0.6	0	0.0
Bicycle or walked	517	6.2	322	3.6	-195	-37.7
Motorcycle or other means	53	0.6	79	0.9	26	49.1
Worked at home	663	7.9	427	4.7	-236	-35.6
TRAVEL TIME TO WORK
Workers who did not work at home	7,719	100.0	8,588	100.0	869	11.3
Less than 5 minutes	774	10.0	953	11.1	179	23.1
5 to 9 minutes	2,379	30.8	2,509	29.2	130	5.5
10 to 14 minutes	1,834	23.8	2,030	23.6	196	10.7
15 to 19 minutes	1,148	14.9	1,009	11.7	-139	-12.1
20 to 29 minutes	666	8.6	1,093	12.7	427	64.1
30 to 44 minutes	543	7.0	661	7.7	118	21.7
45 or more minutes	375	4.9	333	3.9	-42	-11.2
Mean travel time to work (minutes)	13.6	(X)	14.2	(X)	0.6	(X)
TIME LEAVING HOME TO GO TO WORK
Workers who did not work at home	7,719	100.0	8,588	100.0	869	11.3
5:00 a.m. to 6:59 a.m.	1,718	22.3	2,287	26.6	569	33.1
7:00 a.m. to 7:59 a.m.	2,713	35.1	2,819	32.8	106	3.9
8:00 a.m. to 8:59 a.m.	1,489	19.3	1,416	16.5	-73	-4.9
9:00 a.m. to 9:59 a.m.	458	5.9	370	4.3	-88	-19.2
10:00 a.m. to 11:59 a.m.	247	3.2	207	2.4	-40	-16.2
12:00 p.m. to 11:59 p.m.	937	12.1	1,259	14.7	322	34.4
12:00 a.m. to 4:59 a.m.	157	2.0	230	2.7	73	46.5
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: Clay County, Iowa
Subject	Census 2000
	Number	Percent
POPULATION BY AGE
Total population	17,372	100.0
Under 16 years	3,678	21.2
16 to 20 years	1,129	6.5
21 to 24 years	873	5.0
25 to 44 years	4,679	26.9
45 to 64 years	3,884	22.4
65 years and over	3,129	18.0
Mean age (years)	39.0	(X)
HOUSEHOLD INCOME IN 19991
Total households	7,274	100.0
Less than $15,000	1,243	17.1
$15,000 to 19,999	571	7.8
$20,000 to 24,999	603	8.3
$25,000 to 49,999	2,730	37.5
$50,000 to 74,999	1,302	17.9
$75,000 to 99,999	408	5.6
$100,000 or more	417	5.7
Mean household income (dollars)	45,684	(X)
Median household income (dollars)	35,799	(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		1.84	7,275	520	2,290	2,920	1,080	465
	Row percent	(X)	100.0	7.1	31.5	40.1	14.8	6.4
	Column percent	(X)	100.0	100.0	100.0	100.0	100.0	100.0
1-person household		1.03	2,160	375	1,480	215	65	25
	Row percent	(X)	100.0	17.4	68.5	10.0	3.0	1.2
	Column percent	(X)	29.7	72.1	64.6	7.4	6.0	5.4
2-person household		2.00	2,570	95	465	1,525	340	150
	Row percent	(X)	100.0	3.7	18.1	59.3	13.2	5.8
	Column percent	(X)	35.3	18.3	20.3	52.2	31.5	32.3
3-person household		2.27	1,035	20	200	455	235	125
	Row percent	(X)	100.0	1.9	19.3	44.0	22.7	12.1
	Column percent	(X)	14.2	3.8	8.7	15.6	21.8	26.9
4-or-more-person household		2.44	1,510	25	150	725	445	165
	Row percent	(X)	100.0	1.7	9.9	48.0	29.5	10.9
	Column percent	(X)	20.8	4.8	6.6	24.8	41.2	35.5
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		14.2	8,590	3,460	3,040	1,095	660	335
	Row percent	(X)	100.0	40.3	35.4	12.7	7.7	3.9
	Column percent	(X)	100.0	100.0	100.0	100.0	100.0	100.0
Drove alone		14.1	7,245	2,875	2,690	885	525	270
	Row percent	(X)	100.0	39.7	37.1	12.2	7.2	3.7
	Column percent	(X)	84.3	83.1	88.5	80.8	79.5	80.6
Carpooled		18.6	890	265	265	175	125	60
	Row percent	(X)	100.0	29.8	29.8	19.7	14.0	6.7
	Column percent	(X)	10.4	7.7	8.7	16.0	18.9	17.9
Public transportation (including taxicab)		5.2	50	45	4	0	0	0
	Row percent	(X)	100.0	90.0	8.0	0.0	0.0	0.0
	Column percent	(X)	0.6	1.3	0.1	0.0	0.0	0.0
Bicycle or walked		6.6	320	225	75	20	4	0
	Row percent	(X)	100.0	70.3	23.4	6.2	1.2	0.0
	Column percent	(X)	3.7	6.5	2.5	1.8	0.6	0.0
Motorcycle or other means		11.8	80	55	4	10	4	4
	Row percent	(X)	100.0	68.8	5.0	12.5	5.0	5.0
	Column percent	(X)	0.9	1.6	0.1	0.9	0.6	1.2
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.