CENSUS TRANSPORTATION PLANNING PACKAGE (CTPP 2000) Table 1. Profile of Selected 1990 and 2000 Characteristics
Geographic Area: Acton town, Middlesex County, Massachusetts
Subject	1990 Census		Census 2000		Change 1990 to 2000
	Number	Percent	Number	Percent	Number	Percent
POPULATION
Total population	17,872	100.0	20,331	100.0	2,459	13.8
In households	17,747	99.3	20,189	99.3	2,442	13.8
In group quarters	125	0.7	142	0.7	17	13.6
HOUSEHOLD SIZE
Total households	6,574	100.0	7,469	100.0	895	13.6
1-person household	1,363	20.7	1,599	21.4	236	17.3
2-person household	2,055	31.3	2,235	29.9	180	8.8
3-person household	1,251	19.0	1,343	18.0	92	7.4
4-person household	1,284	19.5	1,577	21.1	293	22.8
5-or-more-person household	621	9.4	715	9.6	94	15.1
Mean number of persons per household	2.70	(X)	2.70	(X)	[ >0 ]	(X)
VEHICLES AVAILABLE1
Total households	6,574	100.0	7,469	100.0	895	13.6
No vehicle available	243	3.7	244	3.3	1	0.4
1 vehicle available	1,799	27.4	1,928	25.8	129	7.2
2 vehicles available	3,305	50.3	4,077	54.6	772	23.4
3 vehicles available	864	13.1	970	13.0	106	12.3
4 vehicles available	284	4.3	145	1.9	-139	-48.9
5 or more vehicles available	79	1.2	105	1.4	26	32.9
Mean vehicles per household	1.91	(X)	1.89	(X)	-0.02	(X)
WORKERS BY SEX1
Workers 16 years and over	10,089	100.0	10,940	100.0	851	8.4
Male	5,545	55.0	5,995	54.8	450	8.1
Female	4,544	45.0	4,945	45.2	401	8.8
MEANS OF TRANSPORTATION TO WORK
Workers 16 years and over	10,089	100.0	10,942	100.0	853	8.5
Drove alone	8,500	84.3	8,839	80.8	339	4.0
Carpooled	761	7.5	814	7.4	53	7.0
Public transportation (including taxicab)	358	3.5	495	4.5	137	38.3
Bicycle or walked	177	1.8	152	1.4	-25	-14.1
Motorcycle or other means	52	0.5	26	0.2	-26	-50.0
Worked at home	241	2.4	616	5.6	375	155.6
TRAVEL TIME TO WORK
Workers who did not work at home	9,848	100.0	10,326	100.0	478	4.9
Less than 5 minutes	289	2.9	253	2.5	-36	-12.5
5 to 9 minutes	1,146	11.6	885	8.6	-261	-22.8
10 to 14 minutes	1,485	15.1	1,288	12.5	-197	-13.3
15 to 19 minutes	1,071	10.9	841	8.1	-230	-21.5
20 to 29 minutes	1,558	15.8	1,430	13.8	-128	-8.2
30 to 44 minutes	2,713	27.5	3,009	29.1	296	10.9
45 or more minutes	1,586	16.1	2,620	25.4	1,034	65.2
Mean travel time to work (minutes)	25.9	(X)	31.0	(X)	5.1	(X)
TIME LEAVING HOME TO GO TO WORK
Workers who did not work at home	9,848	100.0	10,326	100.0	478	4.9
5:00 a.m. to 6:59 a.m.	1,490	15.1	1,941	18.8	451	30.3
7:00 a.m. to 7:59 a.m.	3,641	37.0	3,614	35.0	-27	-0.7
8:00 a.m. to 8:59 a.m.	3,055	31.0	2,859	27.7	-196	-6.4
9:00 a.m. to 9:59 a.m.	642	6.5	843	8.2	201	31.3
10:00 a.m. to 11:59 a.m.	291	3.0	286	2.8	-5	-1.7
12:00 p.m. to 11:59 p.m.	680	6.9	676	6.5	-4	-0.6
12:00 a.m. to 4:59 a.m.	49	0.5	107	1.0	58	118.4
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: Acton town, Middlesex County, Massachusetts
Subject	Census 2000
	Number	Percent
POPULATION BY AGE
Total population	20,331	100.0
Under 16 years	5,416	26.6
16 to 20 years	871	4.3
21 to 24 years	544	2.7
25 to 44 years	6,409	31.5
45 to 64 years	5,387	26.5
65 years and over	1,704	8.4
Mean age (years)	34.9	(X)
HOUSEHOLD INCOME IN 19991
Total households	7,469	100.0
Less than $15,000	394	5.3
$15,000 to 19,999	137	1.8
$20,000 to 24,999	194	2.6
$25,000 to 49,999	1,168	15.6
$50,000 to 74,999	1,176	15.7
$75,000 to 99,999	1,044	14.0
$100,000 or more	3,356	44.9
Mean household income (dollars)	113,761	(X)
Median household income (dollars)	91,624	(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		1.89	7,470	245	1,930	4,075	970	250
	Row percent	(X)	100.0	3.3	25.8	54.6	13.0	3.3
	Column percent	(X)	100.0	100.0	100.0	100.0	100.0	100.0
1-person household		1.00	1,600	210	1,220	145	15	4
	Row percent	(X)	100.0	13.1	76.2	9.1	0.9	0.2
	Column percent	(X)	21.4	85.7	63.2	3.6	1.5	1.6
2-person household		1.89	2,235	25	530	1,455	165	60
	Row percent	(X)	100.0	1.1	23.7	65.1	7.4	2.7
	Column percent	(X)	29.9	10.2	27.5	35.7	17.0	24.0
3-person household		2.26	1,345	4	110	800	385	40
	Row percent	(X)	100.0	0.3	8.2	59.5	28.6	3.0
	Column percent	(X)	18.0	1.6	5.7	19.6	39.7	16.0
4-or-more-person household		2.31	2,290	0	70	1,670	405	145
	Row percent	(X)	100.0	0.0	3.1	72.9	17.7	6.3
	Column percent	(X)	30.7	0.0	3.6	41.0	41.8	58.0
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		31.0	10,325	1,140	2,130	1,430	3,010	2,620
	Row percent	(X)	100.0	11.0	20.6	13.8	29.2	25.4
	Column percent	(X)	100.0	100.0	100.0	100.0	100.0	100.0
Drove alone		29.3	8,840	895	1,890	1,325	2,740	1,985
	Row percent	(X)	100.0	10.1	21.4	15.0	31.0	22.5
	Column percent	(X)	85.6	78.5	88.7	92.7	91.0	75.8
Carpooled		27.5	815	135	205	100	225	150
	Row percent	(X)	100.0	16.6	25.2	12.3	27.6	18.4
	Column percent	(X)	7.9	11.8	9.6	7.0	7.5	5.7
Public transportation (including taxicab)		70.4	495	0	0	0	25	470
	Row percent	(X)	100.0	0.0	0.0	0.0	5.1	94.9
	Column percent	(X)	4.8	0.0	0.0	0.0	0.8	17.9
Bicycle or walked		10.0	150	100	30	4	10	4
	Row percent	(X)	100.0	66.7	20.0	2.7	6.7	2.7
	Column percent	(X)	1.5	8.8	1.4	0.3	0.3	0.2
Motorcycle or other means		83.8	25	4	4	0	4	10
	Row percent	(X)	100.0	16.0	16.0	0.0	16.0	40.0
	Column percent	(X)	0.2	0.4	0.2	0.0	0.1	0.4
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.