CENSUS TRANSPORTATION PLANNING PACKAGE (CTPP 2000) Table 1. Profile of Selected 1990 and 2000 Characteristics
Geographic Area: Davis County, Iowa
Subject	1990 Census		Census 2000		Change 1990 to 2000
	Number	Percent	Number	Percent	Number	Percent
POPULATION
Total population	8,312	100.0	8,541	100.0	229	2.8
In households	8,112	97.6	8,358	97.9	246	3.0
In group quarters	200	2.4	183	2.1	-17	-8.5
HOUSEHOLD SIZE
Total households	3,135	100.0	3,205	100.0	70	2.2
1-person household	696	22.2	811	25.3	115	16.5
2-person household	1,164	37.1	1,156	36.1	-8	-0.7
3-person household	420	13.4	490	15.3	70	16.7
4-person household	525	16.7	399	12.4	-126	-24.0
5-or-more-person household	330	10.5	349	10.9	19	5.8
Mean number of persons per household	2.59	(X)	2.61	(X)	0.02	(X)
VEHICLES AVAILABLE1
Total households	3,135	100.0	3,205	100.0	70	2.2
No vehicle available	247	7.9	308	9.6	61	24.7
1 vehicle available	858	27.4	805	25.1	-53	-6.2
2 vehicles available	1,192	38.0	1,097	34.2	-95	-8.0
3 vehicles available	540	17.2	657	20.5	117	21.7
4 vehicles available	208	6.6	210	6.6	2	1.0
5 or more vehicles available	90	2.9	128	4.0	38	42.2
Mean vehicles per household	1.97	(X)	2.03	(X)	0.06	(X)
WORKERS BY SEX1
Workers 16 years and over	3,517	100.0	3,915	100.0	398	11.3
Male	2,010	57.2	2,270	58.0	260	12.9
Female	1,507	42.8	1,645	42.0	138	9.2
MEANS OF TRANSPORTATION TO WORK
Workers 16 years and over	3,517	100.0	3,915	100.0	398	11.3
Drove alone	2,379	67.6	2,722	69.5	343	14.4
Carpooled	422	12.0	466	11.9	44	10.4
Public transportation (including taxicab)	21	0.6	29	0.7	8	38.1
Bicycle or walked	131	3.7	157	4.0	26	19.8
Motorcycle or other means	110	3.1	78	2.0	-32	-29.1
Worked at home	454	12.9	463	11.8	9	2.0
TRAVEL TIME TO WORK
Workers who did not work at home	3,063	100.0	3,452	100.0	389	12.7
Less than 5 minutes	289	9.4	321	9.3	32	11.1
5 to 9 minutes	689	22.5	488	14.1	-201	-29.2
10 to 14 minutes	385	12.6	437	12.7	52	13.5
15 to 19 minutes	423	13.8	413	12.0	-10	-2.4
20 to 29 minutes	487	15.9	597	17.3	110	22.6
30 to 44 minutes	538	17.6	695	20.1	157	29.2
45 or more minutes	252	8.2	501	14.5	249	98.8
Mean travel time to work (minutes)	18.8	(X)	24.9	(X)	6.1	(X)
TIME LEAVING HOME TO GO TO WORK
Workers who did not work at home	3,063	100.0	3,452	100.0	389	12.7
5:00 a.m. to 6:59 a.m.	1,017	33.2	1,148	33.3	131	12.9
7:00 a.m. to 7:59 a.m.	1,067	34.8	1,208	35.0	141	13.2
8:00 a.m. to 8:59 a.m.	362	11.8	386	11.2	24	6.6
9:00 a.m. to 9:59 a.m.	73	2.4	64	1.9	-9	-12.3
10:00 a.m. to 11:59 a.m.	52	1.7	77	2.2	25	48.1
12:00 p.m. to 11:59 p.m.	424	13.8	436	12.6	12	2.8
12:00 a.m. to 4:59 a.m.	68	2.2	133	3.9	65	95.6
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: Davis County, Iowa
Subject	Census 2000
	Number	Percent
POPULATION BY AGE
Total population	8,541	100.0
Under 16 years	2,018	23.6
16 to 20 years	614	7.2
21 to 24 years	331	3.9
25 to 44 years	2,141	25.1
45 to 64 years	1,948	22.8
65 years and over	1,489	17.4
Mean age (years)	38.4	(X)
HOUSEHOLD INCOME IN 19991
Total households	3,205	100.0
Less than $15,000	607	18.9
$15,000 to 19,999	294	9.2
$20,000 to 24,999	310	9.7
$25,000 to 49,999	1,077	33.6
$50,000 to 74,999	670	20.9
$75,000 to 99,999	142	4.4
$100,000 or more	105	3.3
Mean household income (dollars)	39,652	(X)
Median household income (dollars)	32,864	(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		2.03	3,205	310	805	1,095	655	340
	Row percent	(X)	100.0	9.7	25.1	34.2	20.4	10.6
	Column percent	(X)	100.0	100.0	100.0	100.0	100.0	100.0
1-person household		1.17	810	115	505	155	25	20
	Row percent	(X)	100.0	14.2	62.3	19.1	3.1	2.5
	Column percent	(X)	25.3	37.1	62.7	14.2	3.8	5.9
2-person household		2.23	1,155	50	190	540	280	100
	Row percent	(X)	100.0	4.3	16.5	46.8	24.2	8.7
	Column percent	(X)	36.0	16.1	23.6	49.3	42.7	29.4
3-person household		2.61	490	25	50	185	140	95
	Row percent	(X)	100.0	5.1	10.2	37.8	28.6	19.4
	Column percent	(X)	15.3	8.1	6.2	16.9	21.4	27.9
4-or-more-person household		2.26	750	125	65	220	215	125
	Row percent	(X)	100.0	16.7	8.7	29.3	28.7	16.7
	Column percent	(X)	23.4	40.3	8.1	20.1	32.8	36.8
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		24.9	3,450	810	850	595	695	500
	Row percent	(X)	100.0	23.5	24.6	17.2	20.1	14.5
	Column percent	(X)	100.0	100.0	100.0	100.0	100.0	100.0
Drove alone		22.6	2,720	610	745	525	535	305
	Row percent	(X)	100.0	22.4	27.4	19.3	19.7	11.2
	Column percent	(X)	78.8	75.3	87.6	88.2	77.0	61.0
Carpooled		39.0	465	70	60	35	135	165
	Row percent	(X)	100.0	15.1	12.9	7.5	29.0	35.5
	Column percent	(X)	13.5	8.6	7.1	5.9	19.4	33.0
Public transportation (including taxicab)		11.6	30	10	10	4	0	0
	Row percent	(X)	100.0	33.3	33.3	13.3	0.0	0.0
	Column percent	(X)	0.9	1.2	1.2	0.7	0.0	0.0
Bicycle or walked		26.3	155	115	20	0	0	25
	Row percent	(X)	100.0	74.2	12.9	0.0	0.0	16.1
	Column percent	(X)	4.5	14.2	2.4	0.0	0.0	5.0
Motorcycle or other means		25.9	80	0	15	30	25	10
	Row percent	(X)	100.0	0.0	18.8	37.5	31.2	12.5
	Column percent	(X)	2.3	0.0	1.8	5.0	3.6	2.0
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.