CENSUS TRANSPORTATION PLANNING PACKAGE (CTPP 2000) Table 1. Profile of Selected 1990 and 2000 Characteristics
Geographic Area: Fairfax County, Virginia
Subject	1990 Census		Census 2000		Change 1990 to 2000
	Number	Percent	Number	Percent	Number	Percent
POPULATION
Total population	818,584	100.0	969,749	100.0	151,165	18.5
In households	804,354	98.3	959,416	98.9	155,062	19.3
In group quarters	14,230	1.7	10,333	1.1	-3,897	-27.4
HOUSEHOLD SIZE
Total households	292,943	100.0	351,279	100.0	58,336	19.9
1-person household	54,349	18.6	75,006	21.4	20,657	38.0
2-person household	95,713	32.7	113,474	32.3	17,761	18.6
3-person household	58,513	20.0	61,703	17.6	3,190	5.5
4-person household	51,938	17.7	58,132	16.5	6,194	11.9
5-or-more-person household	32,430	11.1	42,964	12.2	10,534	32.5
Mean number of persons per household	2.75	(X)	2.73	(X)	-0.01	(X)
VEHICLES AVAILABLE1
Total households	292,943	100.0	351,279	100.0	58,336	19.9
No vehicle available	9,997	3.4	14,007	4.0	4,010	40.1
1 vehicle available	76,734	26.2	103,435	29.4	26,701	34.8
2 vehicles available	135,066	46.1	161,081	45.9	26,015	19.3
3 vehicles available	51,794	17.7	52,992	15.1	1,198	2.3
4 vehicles available	14,644	5.0	14,770	4.2	126	0.9
5 or more vehicles available	4,708	1.6	4,994	1.4	286	6.1
Mean vehicles per household	2.00	(X)	1.91	(X)	-0.09	(X)
WORKERS BY SEX1
Workers 16 years and over	480,550	100.0	527,465	100.0	46,915	9.8
Male	260,345	54.2	285,330	54.1	24,985	9.6
Female	220,205	45.8	242,130	45.9	21,925	10.0
MEANS OF TRANSPORTATION TO WORK
Workers 16 years and over	480,550	100.0	527,464	100.0	46,914	9.8
Drove alone	342,202	71.2	387,226	73.4	45,024	13.2
Carpooled	75,177	15.6	68,899	13.1	-6,278	-8.4
Public transportation (including taxicab)	36,612	7.6	38,305	7.3	1,693	4.6
Bicycle or walked	9,755	2.0	7,632	1.4	-2,123	-21.8
Motorcycle or other means	2,603	0.5	3,379	0.6	776	29.8
Worked at home	14,201	3.0	22,023	4.2	7,822	55.1
TRAVEL TIME TO WORK
Workers who did not work at home	466,349	100.0	505,441	100.0	39,092	8.4
Less than 5 minutes	6,276	1.3	6,079	1.2	-197	-3.1
5 to 9 minutes	28,684	6.2	26,857	5.3	-1,827	-6.4
10 to 14 minutes	42,769	9.2	44,772	8.9	2,003	4.7
15 to 19 minutes	53,925	11.6	60,478	12.0	6,553	12.2
20 to 29 minutes	90,834	19.5	103,398	20.5	12,564	13.8
30 to 44 minutes	132,542	28.4	142,024	28.1	9,482	7.2
45 or more minutes	111,319	23.9	121,833	24.1	10,514	9.4
Mean travel time to work (minutes)	29.6	(X)	30.7	(X)	1.1	(X)
TIME LEAVING HOME TO GO TO WORK
Workers who did not work at home	466,349	100.0	505,441	100.0	39,092	8.4
5:00 a.m. to 6:59 a.m.	132,017	28.3	128,967	25.5	-3,050	-2.3
7:00 a.m. to 7:59 a.m.	149,436	32.0	156,594	31.0	7,158	4.8
8:00 a.m. to 8:59 a.m.	96,596	20.7	113,305	22.4	16,709	17.3
9:00 a.m. to 9:59 a.m.	31,453	6.7	41,645	8.2	10,192	32.4
10:00 a.m. to 11:59 a.m.	13,671	2.9	17,860	3.5	4,189	30.6
12:00 p.m. to 11:59 p.m.	37,384	8.0	38,600	7.6	1,216	3.3
12:00 a.m. to 4:59 a.m.	5,792	1.2	8,470	1.7	2,678	46.2
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.

CENSUS TRANSPORTATION PLANNING PACKAGE (CTPP 2000) Table 2. Profile of Selected 2000 Characteristics
Geographic Area: Fairfax County, Virginia
Subject	Census 2000
	Number	Percent
POPULATION BY AGE
Total population	969,749	100.0
Under 16 years	219,313	22.6
16 to 20 years	54,503	5.6
21 to 24 years	42,696	4.4
25 to 44 years	332,029	34.2
45 to 64 years	245,210	25.3
65 years and over	75,998	7.8
Mean age (years)	34.8	(X)
HOUSEHOLD INCOME IN 19991
Total households	351,279	100.0
Less than $15,000	15,121	4.3
$15,000 to 19,999	6,365	1.8
$20,000 to 24,999	8,453	2.4
$25,000 to 49,999	59,679	17.0
$50,000 to 74,999	70,343	20.0
$75,000 to 99,999	59,372	16.9
$100,000 or more	131,946	37.6
Mean household income (dollars)	100,913	(X)
Median household income (dollars)	81,050	(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		1.91	351,280	14,005	103,435	161,080	52,990	19,765
	Row percent	(X)	100.0	4.0	29.4	45.9	15.1	5.6
	Column percent	(X)	100.0	100.0	100.0	100.0	100.0	100.0
1-person household		1.07	75,005	6,685	58,150	8,705	1,125	335
	Row percent	(X)	100.0	8.9	77.5	11.6	1.5	0.4
	Column percent	(X)	21.4	47.7	56.2	5.4	2.1	1.7
2-person household		1.91	113,475	3,260	23,370	70,765	13,170	2,905
	Row percent	(X)	100.0	2.9	20.6	62.4	11.6	2.6
	Column percent	(X)	32.3	23.3	22.6	43.9	24.9	14.7
3-person household		2.20	61,705	1,470	10,290	29,780	15,880	4,280
	Row percent	(X)	100.0	2.4	16.7	48.3	25.7	6.9
	Column percent	(X)	17.6	10.5	9.9	18.5	30.0	21.7
4-or-more-person household		2.34	101,095	2,590	11,620	51,825	22,815	12,240
	Row percent	(X)	100.0	2.6	11.5	51.3	22.6	12.1
	Column percent	(X)	28.8	18.5	11.2	32.2	43.1	61.9
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		30.7	505,440	32,935	105,250	103,400	142,025	121,835
	Row percent	(X)	100.0	6.5	20.8	20.5	28.1	24.1
	Column percent	(X)	100.0	100.0	100.0	100.0	100.0	100.0
Drove alone		28.4	387,225	26,130	89,625	88,120	110,105	73,250
	Row percent	(X)	100.0	6.7	23.1	22.8	28.4	18.9
	Column percent	(X)	76.6	79.3	85.2	85.2	77.5	60.1
Carpooled		33.9	68,900	3,100	10,665	11,630	22,525	20,975
	Row percent	(X)	100.0	4.5	15.5	16.9	32.7	30.4
	Column percent	(X)	13.6	9.4	10.1	11.2	15.9	17.2
Public transportation (including taxicab)		50.4	38,305	220	1,595	2,425	8,040	26,030
	Row percent	(X)	100.0	0.6	4.2	6.3	21.0	68.0
	Column percent	(X)	7.6	0.7	1.5	2.3	5.7	21.4
Bicycle or walked		15.4	7,630	3,210	2,590	700	570	565
	Row percent	(X)	100.0	42.1	33.9	9.2	7.5	7.4
	Column percent	(X)	1.5	9.7	2.5	0.7	0.4	0.5
Motorcycle or other means		46.3	3,380	280	770	525	785	1,015
	Row percent	(X)	100.0	8.3	22.8	15.5	23.2	30.0
	Column percent	(X)	0.7	0.9	0.7	0.5	0.6	0.8
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.