CENSUS TRANSPORTATION PLANNING PACKAGE (CTPP 2000) Table 1. Profile of Selected 1990 and 2000 Characteristics
Geographic Area: Derby town, New Haven County, Connecticut
Subject	1990 Census		Census 2000		Change 1990 to 2000
	Number	Percent	Number	Percent	Number	Percent
POPULATION
Total population	12,199	100.0	12,391	100.0	192	1.6
In households	11,927	97.8	12,160	98.1	233	2.0
In group quarters	272	2.2	231	1.9	-41	-15.1
HOUSEHOLD SIZE
Total households	4,963	100.0	5,258	100.0	295	5.9
1-person household	1,436	28.9	1,701	32.4	265	18.5
2-person household	1,639	33.0	1,727	32.8	88	5.4
3-person household	866	17.4	826	15.7	-40	-4.6
4-person household	664	13.4	639	12.2	-25	-3.8
5-or-more-person household	358	7.2	365	6.9	7	2.0
Mean number of persons per household	2.40	(X)	2.31	(X)	-0.09	(X)
VEHICLES AVAILABLE1
Total households	4,963	100.0	5,258	100.0	295	5.9
No vehicle available	516	10.4	592	11.3	76	14.7
1 vehicle available	1,753	35.3	2,213	42.1	460	26.2
2 vehicles available	2,001	40.3	1,831	34.8	-170	-8.5
3 vehicles available	493	9.9	526	10.0	33	6.7
4 vehicles available	144	2.9	80	1.5	-64	-44.4
5 or more vehicles available	56	1.1	16	0.3	-40	-71.4
Mean vehicles per household	1.63	(X)	1.49	(X)	-0.14	(X)
WORKERS BY SEX1
Workers 16 years and over	6,371	100.0	6,140	100.0	-231	-3.6
Male	3,486	54.7	3,115	50.7	-371	-10.6
Female	2,885	45.3	3,025	49.3	140	4.9
MEANS OF TRANSPORTATION TO WORK
Workers 16 years and over	6,371	100.0	6,140	100.0	-231	-3.6
Drove alone	5,151	80.9	5,210	84.9	59	1.1
Carpooled	873	13.7	570	9.3	-303	-34.7
Public transportation (including taxicab)	112	1.8	123	2.0	11	9.8
Bicycle or walked	124	1.9	177	2.9	53	42.7
Motorcycle or other means	37	0.6	7	0.1	-30	-81.1
Worked at home	74	1.2	53	0.9	-21	-28.4
TRAVEL TIME TO WORK
Workers who did not work at home	6,297	100.0	6,087	100.0	-210	-3.3
Less than 5 minutes	227	3.6	157	2.6	-70	-30.8
5 to 9 minutes	937	14.9	838	13.8	-99	-10.6
10 to 14 minutes	1,094	17.4	985	16.2	-109	-10.0
15 to 19 minutes	1,223	19.4	964	15.8	-259	-21.2
20 to 29 minutes	1,431	22.7	1,668	27.4	237	16.6
30 to 44 minutes	878	13.9	830	13.6	-48	-5.5
45 or more minutes	507	8.1	645	10.6	138	27.2
Mean travel time to work (minutes)	19.5	(X)	22.1	(X)	2.6	(X)
TIME LEAVING HOME TO GO TO WORK
Workers who did not work at home	6,297	100.0	6,087	100.0	-210	-3.3
5:00 a.m. to 6:59 a.m.	1,626	25.8	1,785	29.3	159	9.8
7:00 a.m. to 7:59 a.m.	1,809	28.7	1,909	31.4	100	5.5
8:00 a.m. to 8:59 a.m.	1,404	22.3	1,194	19.6	-210	-15.0
9:00 a.m. to 9:59 a.m.	367	5.8	339	5.6	-28	-7.6
10:00 a.m. to 11:59 a.m.	162	2.6	132	2.2	-30	-18.5
12:00 p.m. to 11:59 p.m.	777	12.3	562	9.2	-215	-27.7
12:00 a.m. to 4:59 a.m.	152	2.4	166	2.7	14	9.2
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: Derby town, New Haven County, Connecticut
Subject	Census 2000
	Number	Percent
POPULATION BY AGE
Total population	12,391	100.0
Under 16 years	2,500	20.2
16 to 20 years	497	4.0
21 to 24 years	632	5.1
25 to 44 years	4,036	32.6
45 to 64 years	2,678	21.6
65 years and over	2,048	16.5
Mean age (years)	38.8	(X)
HOUSEHOLD INCOME IN 19991
Total households	5,258	100.0
Less than $15,000	770	14.6
$15,000 to 19,999	317	6.0
$20,000 to 24,999	246	4.7
$25,000 to 49,999	1,500	28.5
$50,000 to 74,999	1,187	22.6
$75,000 to 99,999	638	12.1
$100,000 or more	600	11.4
Mean household income (dollars)	53,527	(X)
Median household income (dollars)	45,670	(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		1.49	5,260	590	2,215	1,830	525	95
	Row percent	(X)	100.0	11.2	42.1	34.8	10.0	1.8
	Column percent	(X)	100.0	100.0	100.0	100.0	100.0	100.0
1-person household		0.87	1,700	325	1,290	75	0	10
	Row percent	(X)	100.0	19.1	75.9	4.4	0.0	0.6
	Column percent	(X)	32.3	55.1	58.2	4.1	0.0	10.5
2-person household		1.59	1,725	125	575	905	120	0
	Row percent	(X)	100.0	7.2	33.3	52.5	7.0	0.0
	Column percent	(X)	32.8	21.2	26.0	49.5	22.9	0.0
3-person household		1.94	825	55	180	370	190	30
	Row percent	(X)	100.0	6.7	21.8	44.8	23.0	3.6
	Column percent	(X)	15.7	9.3	8.1	20.2	36.2	31.6
4-or-more-person household		2.01	1,005	85	165	480	215	55
	Row percent	(X)	100.0	8.5	16.4	47.8	21.4	5.5
	Column percent	(X)	19.1	14.4	7.4	26.2	41.0	57.9
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		22.1	6,085	995	1,950	1,670	830	645
	Row percent	(X)	100.0	16.4	32.0	27.4	13.6	10.6
	Column percent	(X)	100.0	100.0	100.0	100.0	100.0	100.0
Drove alone		22.3	5,210	810	1,695	1,475	680	550
	Row percent	(X)	100.0	15.5	32.5	28.3	13.1	10.6
	Column percent	(X)	85.6	81.4	86.9	88.3	81.9	85.3
Carpooled		21.6	570	105	165	100	125	75
	Row percent	(X)	100.0	18.4	28.9	17.5	21.9	13.2
	Column percent	(X)	9.4	10.6	8.5	6.0	15.1	11.6
Public transportation (including taxicab)		28.4	125	15	30	50	4	25
	Row percent	(X)	100.0	12.0	24.0	40.0	3.2	20.0
	Column percent	(X)	2.1	1.5	1.5	3.0	0.5	3.9
Bicycle or walked		12.8	175	65	50	45	15	0
	Row percent	(X)	100.0	37.1	28.6	25.7	8.6	0.0
	Column percent	(X)	2.9	6.5	2.6	2.7	1.8	0.0
Motorcycle or other means		15.0	4	0	4	0	0	0
	Row percent	(X)	100.0	0.0	100.0	0.0	0.0	0.0
	Column percent	(X)	0.1	0.0	0.2	0.0	0.0	0.0
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.