CENSUS TRANSPORTATION PLANNING PACKAGE (CTPP 2000) Table 1. Profile of Selected 1990 and 2000 Characteristics
Geographic Area: Dickinson County, Iowa
Subject	1990 Census		Census 2000		Change 1990 to 2000
	Number	Percent	Number	Percent	Number	Percent
POPULATION
Total population	14,909	100.0	16,424	100.0	1,515	10.2
In households	14,468	97.0	16,141	98.3	1,673	11.6
In group quarters	441	3.0	283	1.7	-158	-35.8
HOUSEHOLD SIZE
Total households	6,161	100.0	7,094	100.0	933	15.1
1-person household	1,707	27.7	2,054	29.0	347	20.3
2-person household	2,406	39.1	2,970	41.9	564	23.4
3-person household	811	13.2	876	12.3	65	8.0
4-person household	789	12.8	738	10.4	-51	-6.5
5-or-more-person household	448	7.3	456	6.4	8	1.8
Mean number of persons per household	2.35	(X)	2.28	(X)	-0.07	(X)
VEHICLES AVAILABLE1
Total households	6,161	100.0	7,094	100.0	933	15.1
No vehicle available	207	3.4	319	4.5	112	54.1
1 vehicle available	2,022	32.8	2,222	31.3	200	9.9
2 vehicles available	2,732	44.3	3,090	43.6	358	13.1
3 vehicles available	857	13.9	1,042	14.7	185	21.6
4 vehicles available	237	3.8	320	4.5	83	35.0
5 or more vehicles available	106	1.7	101	1.4	-5	-4.7
Mean vehicles per household	1.88	(X)	1.88	(X)	[ >0 ]	(X)
WORKERS BY SEX1
Workers 16 years and over	6,936	100.0	8,310	100.0	1,374	19.8
Male	3,773	54.4	4,415	53.1	642	17.0
Female	3,163	45.6	3,895	46.9	732	23.1
MEANS OF TRANSPORTATION TO WORK
Workers 16 years and over	6,936	100.0	8,309	100.0	1,373	19.8
Drove alone	5,141	74.1	6,644	80.0	1,503	29.2
Carpooled	731	10.5	856	10.3	125	17.1
Public transportation (including taxicab)	4	0.1	7	0.1	3	75.0
Bicycle or walked	467	6.7	337	4.1	-130	-27.8
Motorcycle or other means	16	0.2	42	0.5	26	162.5
Worked at home	577	8.3	423	5.1	-154	-26.7
TRAVEL TIME TO WORK
Workers who did not work at home	6,359	100.0	7,886	100.0	1,527	24.0
Less than 5 minutes	691	10.9	898	11.4	207	30.0
5 to 9 minutes	1,958	30.8	2,083	26.4	125	6.4
10 to 14 minutes	1,369	21.5	1,584	20.1	215	15.7
15 to 19 minutes	770	12.1	1,117	14.2	347	45.1
20 to 29 minutes	872	13.7	1,160	14.7	288	33.0
30 to 44 minutes	447	7.0	681	8.6	234	52.3
45 or more minutes	252	4.0	363	4.6	111	44.0
Mean travel time to work (minutes)	13.8	(X)	15.5	(X)	1.7	(X)
TIME LEAVING HOME TO GO TO WORK
Workers who did not work at home	6,359	100.0	7,886	100.0	1,527	24.0
5:00 a.m. to 6:59 a.m.	1,496	23.5	1,924	24.4	428	28.6
7:00 a.m. to 7:59 a.m.	2,169	34.1	2,894	36.7	725	33.4
8:00 a.m. to 8:59 a.m.	1,196	18.8	1,267	16.1	71	5.9
9:00 a.m. to 9:59 a.m.	401	6.3	411	5.2	10	2.5
10:00 a.m. to 11:59 a.m.	234	3.7	195	2.5	-39	-16.7
12:00 p.m. to 11:59 p.m.	783	12.3	908	11.5	125	16.0
12:00 a.m. to 4:59 a.m.	80	1.3	287	3.6	207	258.8
1See the entry for this item in the Technical Notes in the root directory or state subdirectories (filename: tech_notes.txt). >0Value is too near zero to display. (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: Dickinson County, Iowa
Subject	Census 2000
	Number	Percent
POPULATION BY AGE
Total population	16,424	100.0
Under 16 years	3,134	19.1
16 to 20 years	919	5.6
21 to 24 years	641	3.9
25 to 44 years	3,915	23.8
45 to 64 years	4,427	27.0
65 years and over	3,388	20.6
Mean age (years)	41.9	(X)
HOUSEHOLD INCOME IN 19991
Total households	7,094	100.0
Less than $15,000	985	13.9
$15,000 to 19,999	463	6.5
$20,000 to 24,999	592	8.3
$25,000 to 49,999	2,519	35.5
$50,000 to 74,999	1,458	20.6
$75,000 to 99,999	541	7.6
$100,000 or more	536	7.6
Mean household income (dollars)	50,316	(X)
Median household income (dollars)	39,020	(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		1.88	7,095	320	2,220	3,090	1,040	420
	Row percent	(X)	100.0	4.5	31.3	43.6	14.7	5.9
	Column percent	(X)	100.0	100.0	100.0	100.0	100.0	100.0
1-person household		1.13	2,055	235	1,410	325	75	4
	Row percent	(X)	100.0	11.4	68.6	15.8	3.6	0.2
	Column percent	(X)	29.0	73.4	63.5	10.5	7.2	1.0
2-person household		2.01	2,970	60	545	1,800	465	100
	Row percent	(X)	100.0	2.0	18.4	60.6	15.7	3.4
	Column percent	(X)	41.9	18.8	24.5	58.3	44.7	23.8
3-person household		2.34	875	20	135	365	270	90
	Row percent	(X)	100.0	2.3	15.4	41.7	30.9	10.3
	Column percent	(X)	12.3	6.2	6.1	11.8	26.0	21.4
4-or-more-person household		2.52	1,195	4	130	600	235	225
	Row percent	(X)	100.0	0.3	10.9	50.2	19.7	18.8
	Column percent	(X)	16.8	1.2	5.9	19.4	22.6	53.6
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		15.5	7,885	2,980	2,700	1,160	680	365
	Row percent	(X)	100.0	37.8	34.2	14.7	8.6	4.6
	Column percent	(X)	100.0	100.0	100.0	100.0	100.0	100.0
Drove alone		15.6	6,645	2,430	2,375	990	560	290
	Row percent	(X)	100.0	36.6	35.7	14.9	8.4	4.4
	Column percent	(X)	84.3	81.5	88.0	85.3	82.4	79.5
Carpooled		17.7	855	285	260	155	100	55
	Row percent	(X)	100.0	33.3	30.4	18.1	11.7	6.4
	Column percent	(X)	10.8	9.6	9.6	13.4	14.7	15.1
Public transportation (including taxicab)		14.3	4	4	4	4	0	0
	Row percent	(X)	100.0	100.0	100.0	100.0	0.0	0.0
	Column percent	(X)	0.1	0.1	0.1	0.3	0.0	0.0
Bicycle or walked		7.5	335	260	45	4	10	15
	Row percent	(X)	100.0	77.6	13.4	1.2	3.0	4.5
	Column percent	(X)	4.2	8.7	1.7	0.3	1.5	4.1
Motorcycle or other means		18.1	40	4	20	4	10	4
	Row percent	(X)	100.0	10.0	50.0	10.0	25.0	10.0
	Column percent	(X)	0.5	0.1	0.7	0.3	1.5	1.1
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.