CENSUS TRANSPORTATION PLANNING PACKAGE (CTPP 2000) Table 1. Profile of Selected 1990 and 2000 Characteristics
Geographic Area: Robertson County, Tennessee
Subject	1990 Census		Census 2000		Change 1990 to 2000
	Number	Percent	Number	Percent	Number	Percent
POPULATION
Total population	41,494	100.0	54,433	100.0	12,939	31.2
In households	41,056	98.9	53,919	99.1	12,863	31.3
In group quarters	438	1.1	514	0.9	76	17.4
HOUSEHOLD SIZE
Total households	14,798	100.0	19,907	100.0	5,109	34.5
1-person household	2,588	17.5	3,695	18.6	1,107	42.8
2-person household	4,745	32.1	6,832	34.3	2,087	44.0
3-person household	3,119	21.1	3,998	20.1	879	28.2
4-person household	2,702	18.3	3,377	17.0	675	25.0
5-or-more-person household	1,644	11.1	2,005	10.1	361	22.0
Mean number of persons per household	2.77	(X)	2.71	(X)	-0.07	(X)
VEHICLES AVAILABLE1
Total households	14,798	100.0	19,907	100.0	5,109	34.5
No vehicle available	1,171	7.9	1,273	6.4	102	8.7
1 vehicle available	3,630	24.5	4,831	24.3	1,201	33.1
2 vehicles available	6,293	42.5	8,726	43.8	2,433	38.7
3 vehicles available	2,737	18.5	3,421	17.2	684	25.0
4 vehicles available	689	4.7	1,190	6.0	501	72.7
5 or more vehicles available	278	1.9	466	2.3	188	67.6
Mean vehicles per household	1.94	(X)	2.00	(X)	0.06	(X)
WORKERS BY SEX1
Workers 16 years and over	19,659	100.0	27,250	100.0	7,591	38.6
Male	11,240	57.2	15,045	55.2	3,805	33.9
Female	8,419	42.8	12,205	44.8	3,786	45.0
MEANS OF TRANSPORTATION TO WORK
Workers 16 years and over	19,659	100.0	27,248	100.0	7,589	38.6
Drove alone	15,046	76.5	21,773	79.9	6,727	44.7
Carpooled	3,411	17.4	4,117	15.1	706	20.7
Public transportation (including taxicab)	191	1.0	94	0.3	-97	-50.8
Bicycle or walked	277	1.4	281	1.0	4	1.4
Motorcycle or other means	148	0.8	215	0.8	67	45.3
Worked at home	586	3.0	768	2.8	182	31.1
TRAVEL TIME TO WORK
Workers who did not work at home	19,073	100.0	26,480	100.0	7,407	38.8
Less than 5 minutes	758	4.0	846	3.2	88	11.6
5 to 9 minutes	2,434	12.8	2,748	10.4	314	12.9
10 to 14 minutes	2,439	12.8	3,212	12.1	773	31.7
15 to 19 minutes	2,393	12.5	2,836	10.7	443	18.5
20 to 29 minutes	2,787	14.6	4,148	15.7	1,361	48.8
30 to 44 minutes	4,423	23.2	6,660	25.2	2,237	50.6
45 or more minutes	3,839	20.1	6,030	22.8	2,191	57.1
Mean travel time to work (minutes)	25.6	(X)	29.3	(X)	3.7	(X)
TIME LEAVING HOME TO GO TO WORK
Workers who did not work at home	19,073	100.0	26,480	100.0	7,407	38.8
5:00 a.m. to 6:59 a.m.	7,999	41.9	10,947	41.3	2,948	36.9
7:00 a.m. to 7:59 a.m.	5,424	28.4	7,777	29.4	2,353	43.4
8:00 a.m. to 8:59 a.m.	1,428	7.5	1,933	7.3	505	35.4
9:00 a.m. to 9:59 a.m.	491	2.6	743	2.8	252	51.3
10:00 a.m. to 11:59 a.m.	328	1.7	418	1.6	90	27.4
12:00 p.m. to 11:59 p.m.	2,779	14.6	3,260	12.3	481	17.3
12:00 a.m. to 4:59 a.m.	624	3.3	1,402	5.3	778	124.7
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: Robertson County, Tennessee
Subject	Census 2000
	Number	Percent
POPULATION BY AGE
Total population	54,433	100.0
Under 16 years	12,926	23.7
16 to 20 years	3,816	7.0
21 to 24 years	2,439	4.5
25 to 44 years	17,074	31.4
45 to 64 years	12,278	22.6
65 years and over	5,900	10.8
Mean age (years)	35.1	(X)
HOUSEHOLD INCOME IN 19991
Total households	19,907	100.0
Less than $15,000	2,732	13.7
$15,000 to 19,999	1,150	5.8
$20,000 to 24,999	1,193	6.0
$25,000 to 49,999	6,486	32.6
$50,000 to 74,999	4,645	23.3
$75,000 to 99,999	2,189	11.0
$100,000 or more	1,512	7.6
Mean household income (dollars)	51,830	(X)
Median household income (dollars)	43,174	(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		2.00	19,905	1,275	4,830	8,725	3,420	1,655
	Row percent	(X)	100.0	6.4	24.3	43.8	17.2	8.3
	Column percent	(X)	100.0	100.0	100.0	100.0	100.0	100.0
1-person household		1.09	3,695	725	2,225	565	105	75
	Row percent	(X)	100.0	19.6	60.2	15.3	2.8	2.0
	Column percent	(X)	18.6	56.9	46.1	6.5	3.1	4.5
2-person household		2.02	6,830	215	1,255	3,975	1,070	315
	Row percent	(X)	100.0	3.1	18.4	58.2	15.7	4.6
	Column percent	(X)	34.3	16.9	26.0	45.6	31.3	19.0
3-person household		2.16	4,000	170	745	1,750	1,010	325
	Row percent	(X)	100.0	4.2	18.6	43.8	25.2	8.1
	Column percent	(X)	20.1	13.3	15.4	20.1	29.5	19.6
4-or-more-person household		2.47	5,380	160	605	2,440	1,240	940
	Row percent	(X)	100.0	3.0	11.2	45.4	23.0	17.5
	Column percent	(X)	27.0	12.5	12.5	28.0	36.3	56.8
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		29.3	26,480	3,595	6,050	4,150	6,660	6,030
	Row percent	(X)	100.0	13.6	22.8	15.7	25.2	22.8
	Column percent	(X)	100.0	100.0	100.0	100.0	100.0	100.0
Drove alone		29.2	21,775	2,885	4,860	3,470	5,600	4,955
	Row percent	(X)	100.0	13.2	22.3	15.9	25.7	22.8
	Column percent	(X)	82.2	80.3	80.3	83.6	84.1	82.2
Carpooled		30.1	4,115	485	1,020	605	1,025	985
	Row percent	(X)	100.0	11.8	24.8	14.7	24.9	23.9
	Column percent	(X)	15.5	13.5	16.9	14.6	15.4	16.3
Public transportation (including taxicab)		32.3	95	30	20	0	20	25
	Row percent	(X)	100.0	31.6	21.1	0.0	21.1	26.3
	Column percent	(X)	0.4	0.8	0.3	0.0	0.3	0.4
Bicycle or walked		7.3	280	185	65	30	0	0
	Row percent	(X)	100.0	66.1	23.2	10.7	0.0	0.0
	Column percent	(X)	1.1	5.1	1.1	0.7	0.0	0.0
Motorcycle or other means		54.0	215	4	85	45	15	65
	Row percent	(X)	100.0	1.9	39.5	20.9	7.0	30.2
	Column percent	(X)	0.8	0.1	1.4	1.1	0.2	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.