CENSUS TRANSPORTATION PLANNING PACKAGE (CTPP 2000) Table 1. Profile of Selected 1990 and 2000 Characteristics
Geographic Area: Iowa County, Iowa
Subject	1990 Census		Census 2000		Change 1990 to 2000
	Number	Percent	Number	Percent	Number	Percent
POPULATION
Total population	14,630	100.0	15,671	100.0	1,041	7.1
In households	14,350	98.1	15,387	98.2	1,037	7.2
In group quarters	280	1.9	284	1.8	4	1.4
HOUSEHOLD SIZE
Total households	5,703	100.0	6,186	100.0	483	8.5
1-person household	1,418	24.9	1,600	25.9	182	12.8
2-person household	2,035	35.7	2,210	35.7	175	8.6
3-person household	879	15.4	839	13.6	-40	-4.6
4-person household	801	14.0	922	14.9	121	15.1
5-or-more-person household	570	10.0	615	9.9	45	7.9
Mean number of persons per household	2.52	(X)	2.49	(X)	-0.03	(X)
VEHICLES AVAILABLE1
Total households	5,703	100.0	6,186	100.0	483	8.5
No vehicle available	331	5.8	277	4.5	-54	-16.3
1 vehicle available	1,544	27.1	1,659	26.8	115	7.4
2 vehicles available	2,377	41.7	2,549	41.2	172	7.2
3 vehicles available	969	17.0	1,146	18.5	177	18.3
4 vehicles available	292	5.1	366	5.9	74	25.3
5 or more vehicles available	190	3.3	189	3.1	-1	-0.5
Mean vehicles per household	2.00	(X)	2.05	(X)	0.05	(X)
WORKERS BY SEX1
Workers 16 years and over	7,352	100.0	8,210	100.0	858	11.7
Male	3,984	54.2	4,300	52.4	316	7.9
Female	3,368	45.8	3,910	47.6	542	16.1
MEANS OF TRANSPORTATION TO WORK
Workers 16 years and over	7,352	100.0	8,211	100.0	859	11.7
Drove alone	4,541	61.8	5,858	71.3	1,317	29.0
Carpooled	1,419	19.3	1,387	16.9	-32	-2.3
Public transportation (including taxicab)	27	0.4	7	0.1	-20	-74.1
Bicycle or walked	463	6.3	315	3.8	-148	-32.0
Motorcycle or other means	18	0.2	47	0.6	29	161.1
Worked at home	884	12.0	597	7.3	-287	-32.5
TRAVEL TIME TO WORK
Workers who did not work at home	6,468	100.0	7,614	100.0	1,146	17.7
Less than 5 minutes	730	11.3	740	9.7	10	1.4
5 to 9 minutes	1,280	19.8	1,405	18.5	125	9.8
10 to 14 minutes	888	13.7	932	12.2	44	5.0
15 to 19 minutes	794	12.3	893	11.7	99	12.5
20 to 29 minutes	991	15.3	1,252	16.4	261	26.3
30 to 44 minutes	1,099	17.0	1,481	19.5	382	34.8
45 or more minutes	686	10.6	911	12.0	225	32.8
Mean travel time to work (minutes)	19.3	(X)	21.7	(X)	2.4	(X)
TIME LEAVING HOME TO GO TO WORK
Workers who did not work at home	6,468	100.0	7,614	100.0	1,146	17.7
5:00 a.m. to 6:59 a.m.	2,138	33.1	2,569	33.7	431	20.2
7:00 a.m. to 7:59 a.m.	1,936	29.9	2,357	31.0	421	21.7
8:00 a.m. to 8:59 a.m.	852	13.2	772	10.1	-80	-9.4
9:00 a.m. to 9:59 a.m.	262	4.1	261	3.4	-1	-0.4
10:00 a.m. to 11:59 a.m.	150	2.3	173	2.3	23	15.3
12:00 p.m. to 11:59 p.m.	1,015	15.7	1,204	15.8	189	18.6
12:00 a.m. to 4:59 a.m.	115	1.8	278	3.7	163	141.7
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: Iowa County, Iowa
Subject	Census 2000
	Number	Percent
POPULATION BY AGE
Total population	15,671	100.0
Under 16 years	3,643	23.2
16 to 20 years	1,016	6.5
21 to 24 years	447	2.9
25 to 44 years	4,395	28.0
45 to 64 years	3,492	22.3
65 years and over	2,678	17.1
Mean age (years)	38.6	(X)
HOUSEHOLD INCOME IN 19991
Total households	6,186	100.0
Less than $15,000	748	12.1
$15,000 to 19,999	406	6.6
$20,000 to 24,999	457	7.4
$25,000 to 49,999	2,301	37.2
$50,000 to 74,999	1,508	24.4
$75,000 to 99,999	514	8.3
$100,000 or more	252	4.1
Mean household income (dollars)	47,016	(X)
Median household income (dollars)	41,222	(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		2.05	6,185	275	1,660	2,550	1,145	555
	Row percent	(X)	100.0	4.4	26.8	41.2	18.5	9.0
	Column percent	(X)	100.0	100.0	100.0	100.0	100.0	100.0
1-person household		1.22	1,600	190	1,035	270	55	45
	Row percent	(X)	100.0	11.9	64.7	16.9	3.4	2.8
	Column percent	(X)	25.9	69.1	62.3	10.6	4.8	8.1
2-person household		2.06	2,210	65	400	1,235	405	105
	Row percent	(X)	100.0	2.9	18.1	55.9	18.3	4.8
	Column percent	(X)	35.7	23.6	24.1	48.4	35.4	18.9
3-person household		2.40	840	10	115	385	235	100
	Row percent	(X)	100.0	1.2	13.7	45.8	28.0	11.9
	Column percent	(X)	13.6	3.6	6.9	15.1	20.5	18.0
4-or-more-person household		2.71	1,535	10	105	660	455	305
	Row percent	(X)	100.0	0.7	6.8	43.0	29.6	19.9
	Column percent	(X)	24.8	3.6	6.3	25.9	39.7	55.0
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		21.7	7,615	2,145	1,825	1,250	1,480	910
	Row percent	(X)	100.0	28.2	24.0	16.4	19.4	12.0
	Column percent	(X)	100.0	100.0	100.0	100.0	100.0	100.0
Drove alone		21.4	5,860	1,695	1,490	925	1,035	715
	Row percent	(X)	100.0	28.9	25.4	15.8	17.7	12.2
	Column percent	(X)	77.0	79.0	81.6	74.0	69.9	78.6
Carpooled		25.7	1,385	180	275	310	440	185
	Row percent	(X)	100.0	13.0	19.9	22.4	31.8	13.4
	Column percent	(X)	18.2	8.4	15.1	24.8	29.7	20.3
Public transportation (including taxicab)		16.4	4	4	0	0	0	4
	Row percent	(X)	100.0	100.0	0.0	0.0	0.0	100.0
	Column percent	(X)	0.1	0.2	0.0	0.0	0.0	0.4
Bicycle or walked		8.2	315	260	40	10	0	4
	Row percent	(X)	100.0	82.5	12.7	3.2	0.0	1.3
	Column percent	(X)	4.1	12.1	2.2	0.8	0.0	0.4
Motorcycle or other means		30.2	45	10	20	4	4	4
	Row percent	(X)	100.0	22.2	44.4	8.9	8.9	8.9
	Column percent	(X)	0.6	0.5	1.1	0.3	0.3	0.4
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.