CENSUS TRANSPORTATION PLANNING PACKAGE (CTPP 2000) Table 1. Profile of Selected 1990 and 2000 Characteristics
Geographic Area: Island County, Washington
Subject	1990 Census		Census 2000		Change 1990 to 2000
	Number	Percent	Number	Percent	Number	Percent
POPULATION
Total population	60,195	100.0	71,558	100.0	11,363	18.9
In households	57,002	94.7	70,078	97.9	13,076	22.9
In group quarters	3,193	5.3	1,480	2.1	-1,713	-53.6
HOUSEHOLD SIZE
Total households	21,918	100.0	27,756	100.0	5,838	26.6
1-person household	4,027	18.4	5,966	21.5	1,939	48.1
2-person household	8,693	39.7	11,216	40.4	2,523	29.0
3-person household	3,687	16.8	4,244	15.3	557	15.1
4-person household	3,429	15.6	3,807	13.7	378	11.0
5-or-more-person household	2,082	9.5	2,523	9.1	441	21.2
Mean number of persons per household	2.60	(X)	2.52	(X)	-0.08	(X)
VEHICLES AVAILABLE1
Total households	21,918	100.0	27,756	100.0	5,838	26.6
No vehicle available	824	3.8	988	3.6	164	19.9
1 vehicle available	6,571	30.0	7,775	28.0	1,204	18.3
2 vehicles available	9,601	43.8	12,332	44.4	2,731	28.4
3 vehicles available	3,697	16.9	4,777	17.2	1,080	29.2
4 vehicles available	928	4.2	1,341	4.8	413	44.5
5 or more vehicles available	297	1.4	543	2.0	246	82.8
Mean vehicles per household	1.92	(X)	1.98	(X)	0.06	(X)
WORKERS BY SEX1
Workers 16 years and over	27,888	100.0	32,540	100.0	4,652	16.7
Male	17,496	62.7	18,500	56.9	1,004	5.7
Female	10,392	37.3	14,035	43.1	3,643	35.1
MEANS OF TRANSPORTATION TO WORK
Workers 16 years and over	27,888	100.0	32,538	100.0	4,650	16.7
Drove alone	19,699	70.6	23,947	73.6	4,248	21.6
Carpooled	3,874	13.9	4,324	13.3	450	11.6
Public transportation (including taxicab)	430	1.5	715	2.2	285	66.3
Bicycle or walked	2,081	7.5	1,340	4.1	-741	-35.6
Motorcycle or other means	712	2.6	429	1.3	-283	-39.7
Worked at home	1,092	3.9	1,783	5.5	691	63.3
TRAVEL TIME TO WORK
Workers who did not work at home	26,796	100.0	30,755	100.0	3,959	14.8
Less than 5 minutes	1,364	5.1	1,447	4.7	83	6.1
5 to 9 minutes	4,986	18.6	4,939	16.1	-47	-0.9
10 to 14 minutes	6,781	25.3	6,322	20.6	-459	-6.8
15 to 19 minutes	5,145	19.2	4,779	15.5	-366	-7.1
20 to 29 minutes	2,622	9.8	2,929	9.5	307	11.7
30 to 44 minutes	2,254	8.4	3,084	10.0	830	36.8
45 or more minutes	3,644	13.6	7,255	23.6	3,611	99.1
Mean travel time to work (minutes)	20.7	(X)	28.8	(X)	8.1	(X)
TIME LEAVING HOME TO GO TO WORK
Workers who did not work at home	26,796	100.0	30,755	100.0	3,959	14.8
5:00 a.m. to 6:59 a.m.	9,227	34.4	10,119	32.9	892	9.7
7:00 a.m. to 7:59 a.m.	6,788	25.3	7,440	24.2	652	9.6
8:00 a.m. to 8:59 a.m.	3,444	12.9	4,138	13.5	694	20.2
9:00 a.m. to 9:59 a.m.	1,248	4.7	1,915	6.2	667	53.4
10:00 a.m. to 11:59 a.m.	849	3.2	1,324	4.3	475	55.9
12:00 p.m. to 11:59 p.m.	4,326	16.1	4,078	13.3	-248	-5.7
12:00 a.m. to 4:59 a.m.	914	3.4	1,741	5.7	827	90.5
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: Island County, Washington
Subject	Census 2000
	Number	Percent
POPULATION BY AGE
Total population	71,558	100.0
Under 16 years	16,291	22.8
16 to 20 years	4,460	6.2
21 to 24 years	3,695	5.2
25 to 44 years	20,079	28.1
45 to 64 years	16,820	23.5
65 years and over	10,213	14.3
Mean age (years)	37.1	(X)
HOUSEHOLD INCOME IN 19991
Total households	27,756	100.0
Less than $15,000	3,040	11.0
$15,000 to 19,999	1,470	5.3
$20,000 to 24,999	1,836	6.6
$25,000 to 49,999	9,009	32.5
$50,000 to 74,999	6,763	24.4
$75,000 to 99,999	2,882	10.4
$100,000 or more	2,756	9.9
Mean household income (dollars)	54,553	(X)
Median household income (dollars)	45,513	(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		1.98	27,755	990	7,775	12,330	4,775	1,885
	Row percent	(X)	100.0	3.6	28.0	44.4	17.2	6.8
	Column percent	(X)	100.0	100.0	100.0	100.0	100.0	100.0
1-person household		1.23	5,965	620	3,910	1,070	260	105
	Row percent	(X)	100.0	10.4	65.5	17.9	4.4	1.8
	Column percent	(X)	21.5	62.6	50.3	8.7	5.4	5.6
2-person household		2.08	11,215	215	2,140	6,250	2,015	600
	Row percent	(X)	100.0	1.9	19.1	55.7	18.0	5.3
	Column percent	(X)	40.4	21.7	27.5	50.7	42.2	31.8
3-person household		2.21	4,245	65	815	2,030	950	385
	Row percent	(X)	100.0	1.5	19.2	47.8	22.4	9.1
	Column percent	(X)	15.3	6.6	10.5	16.5	19.9	20.4
4-or-more-person household		2.37	6,330	85	910	2,985	1,550	795
	Row percent	(X)	100.0	1.3	14.4	47.2	24.5	12.6
	Column percent	(X)	22.8	8.6	11.7	24.2	32.5	42.2
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		28.8	30,755	6,385	11,100	2,930	3,085	7,255
	Row percent	(X)	100.0	20.8	36.1	9.5	10.0	23.6
	Column percent	(X)	100.0	100.0	100.0	100.0	100.0	100.0
Drove alone		26.7	23,945	4,960	9,130	2,350	2,395	5,115
	Row percent	(X)	100.0	20.7	38.1	9.8	10.0	21.4
	Column percent	(X)	77.9	77.7	82.3	80.2	77.6	70.5
Carpooled		37.3	4,325	625	1,260	415	530	1,490
	Row percent	(X)	100.0	14.5	29.1	9.6	12.3	34.5
	Column percent	(X)	14.1	9.8	11.4	14.2	17.2	20.5
Public transportation (including taxicab)		58.7	715	55	70	50	80	460
	Row percent	(X)	100.0	7.7	9.8	7.0	11.2	64.3
	Column percent	(X)	2.3	0.9	0.6	1.7	2.6	6.3
Bicycle or walked		11.2	1,340	605	565	80	55	40
	Row percent	(X)	100.0	45.1	42.2	6.0	4.1	3.0
	Column percent	(X)	4.4	9.5	5.1	2.7	1.8	0.6
Motorcycle or other means		64.1	430	140	80	30	25	155
	Row percent	(X)	100.0	32.6	18.6	7.0	5.8	36.0
	Column percent	(X)	1.4	2.2	0.7	1.0	0.8	2.1
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.