CENSUS TRANSPORTATION PLANNING PACKAGE (CTPP 2000) Table 1. Profile of Selected 1990 and 2000 Characteristics
Geographic Area: Colorado
Subject	1990 Census		Census 2000		Change 1990 to 2000
	Number	Percent	Number	Percent	Number	Percent
POPULATION
Total population	3,294,394	100.0	4,301,261	100.0	1,006,867	30.6
In households	3,215,826	97.6	4,198,094	97.6	982,268	30.5
In group quarters	78,568	2.4	103,167	2.4	24,599	31.3
HOUSEHOLD SIZE
Total households	1,285,119	100.0	1,659,308	100.0	374,189	29.1
1-person household	340,413	26.5	435,288	26.2	94,875	27.9
2-person household	424,450	33.0	561,362	33.8	136,912	32.3
3-person household	213,245	16.6	263,765	15.9	50,520	23.7
4-person household	190,935	14.9	234,790	14.1	43,855	23.0
5-or-more-person household	116,076	9.0	164,103	9.9	48,027	41.4
Mean number of persons per household	2.50	(X)	2.53	(X)	0.03	(X)
VEHICLES AVAILABLE1
Total households	1,285,119	100.0	1,659,308	100.0	374,189	29.1
No vehicle available	86,706	6.7	104,637	6.3	17,931	20.7
1 vehicle available	408,343	31.8	522,156	31.5	113,813	27.9
2 vehicles available	508,206	39.5	674,415	40.6	166,209	32.7
3 vehicles available	200,335	15.6	255,624	15.4	55,289	27.6
4 vehicles available	58,260	4.5	71,766	4.3	13,506	23.2
5 or more vehicles available	23,269	1.8	30,710	1.9	7,441	32.0
Mean vehicles per household	1.86	(X)	1.86	(X)	0.01	(X)
WORKERS BY SEX1
Workers 16 years and over	1,637,440	100.0	2,191,625	100.0	554,185	33.8
Male	895,942	54.7	1,200,965	54.8	305,023	34.0
Female	741,498	45.3	990,660	45.2	249,162	33.6
MEANS OF TRANSPORTATION TO WORK
Workers 16 years and over	1,637,440	100.0	2,191,626	100.0	554,186	33.8
Drove alone	1,216,639	74.3	1,646,454	75.1	429,815	35.3
Carpooled	210,274	12.8	268,168	12.2	57,894	27.5
Public transportation (including taxicab)	46,983	2.9	69,515	3.2	22,532	48.0
Bicycle or walked	82,181	5.0	82,573	3.8	392	0.5
Motorcycle or other means	14,174	0.9	16,784	0.8	2,610	18.4
Worked at home	67,189	4.1	108,132	4.9	40,943	60.9
TRAVEL TIME TO WORK
Workers who did not work at home	1,570,251	100.0	2,083,494	100.0	513,243	32.7
Less than 5 minutes	67,605	4.3	72,206	3.5	4,601	6.8
5 to 9 minutes	212,504	13.5	235,913	11.3	23,409	11.0
10 to 14 minutes	263,404	16.8	318,642	15.3	55,238	21.0
15 to 19 minutes	275,810	17.6	333,306	16.0	57,496	20.8
20 to 29 minutes	341,621	21.8	439,088	21.1	97,467	28.5
30 to 44 minutes	267,702	17.0	410,067	19.7	142,365	53.2
45 or more minutes	141,605	9.0	274,272	13.2	132,667	93.7
Mean travel time to work (minutes)	20.7	(X)	24.3	(X)	3.6	(X)
TIME LEAVING HOME TO GO TO WORK
Workers who did not work at home	1,570,251	100.0	2,083,494	100.0	513,243	32.7
5:00 a.m. to 6:59 a.m.	436,409	27.8	602,047	28.9	165,638	38.0
7:00 a.m. to 7:59 a.m.	527,876	33.6	665,868	32.0	137,992	26.1
8:00 a.m. to 8:59 a.m.	239,819	15.3	325,018	15.6	85,199	35.5
9:00 a.m. to 9:59 a.m.	77,566	4.9	114,870	5.5	37,304	48.1
10:00 a.m. to 11:59 a.m.	51,078	3.3	71,172	3.4	20,094	39.3
12:00 p.m. to 11:59 p.m.	202,395	12.9	241,654	11.6	39,259	19.4
12:00 a.m. to 4:59 a.m.	35,108	2.2	62,865	3.0	27,757	79.1
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.

CENSUS TRANSPORTATION PLANNING PACKAGE (CTPP 2000) Table 2. Profile of Selected 2000 Characteristics
Geographic Area: Colorado
Subject	Census 2000
	Number	Percent
POPULATION BY AGE
Total population	4,301,261	100.0
Under 16 years	976,064	22.7
16 to 20 years	305,093	7.1
21 to 24 years	243,472	5.7
25 to 44 years	1,409,857	32.8
45 to 64 years	950,993	22.1
65 years and over	415,782	9.7
Mean age (years)	34.5	(X)
HOUSEHOLD INCOME IN 19991
Total households	1,659,308	100.0
Less than $15,000	197,242	11.9
$15,000 to 19,999	86,761	5.2
$20,000 to 24,999	99,236	6.0
$25,000 to 49,999	490,871	29.6
$50,000 to 74,999	351,663	21.2
$75,000 to 99,999	197,339	11.9
$100,000 or more	236,196	14.2
Mean household income (dollars)	61,437	(X)
Median household income (dollars)	47,203	(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		1.86	1,659,310	104,635	522,155	674,415	255,625	102,475
	Row percent	(X)	100.0	6.3	31.5	40.6	15.4	6.2
	Column percent	(X)	100.0	100.0	100.0	100.0	100.0	100.0
1-person household		1.09	435,290	62,380	295,415	61,840	11,090	4,560
	Row percent	(X)	100.0	14.3	67.9	14.2	2.5	1.0
	Column percent	(X)	26.2	59.6	56.6	9.2	4.3	4.4
2-person household		1.95	561,360	20,760	122,175	312,865	82,560	23,005
	Row percent	(X)	100.0	3.7	21.8	55.7	14.7	4.1
	Column percent	(X)	33.8	19.8	23.4	46.4	32.3	22.4
3-person household		2.18	263,765	9,515	50,625	114,525	67,925	21,170
	Row percent	(X)	100.0	3.6	19.2	43.4	25.8	8.0
	Column percent	(X)	15.9	9.1	9.7	17.0	26.6	20.7
4-or-more-person household		2.36	398,895	11,985	53,940	185,185	94,045	53,740
	Row percent	(X)	100.0	3.0	13.5	46.4	23.6	13.5
	Column percent	(X)	24.0	11.5	10.3	27.5	36.8	52.4
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		24.3	2,083,495	308,120	651,950	439,090	410,065	274,270
	Row percent	(X)	100.0	14.8	31.3	21.1	19.7	13.2
	Column percent	(X)	100.0	100.0	100.0	100.0	100.0	100.0
Drove alone		23.2	1,646,455	233,635	534,880	367,785	324,195	185,960
	Row percent	(X)	100.0	14.2	32.5	22.3	19.7	11.3
	Column percent	(X)	79.0	75.8	82.0	83.8	79.1	67.8
Carpooled		28.0	268,170	30,095	75,300	52,450	60,325	50,000
	Row percent	(X)	100.0	11.2	28.1	19.6	22.5	18.6
	Column percent	(X)	12.9	9.8	11.5	11.9	14.7	18.2
Public transportation (including taxicab)		41.6	69,515	1,830	9,805	9,395	18,050	30,440
	Row percent	(X)	100.0	2.6	14.1	13.5	26.0	43.8
	Column percent	(X)	3.3	0.6	1.5	2.1	4.4	11.1
Bicycle or walked		12.2	82,575	39,770	27,310	7,525	5,450	2,520
	Row percent	(X)	100.0	48.2	33.1	9.1	6.6	3.1
	Column percent	(X)	4.0	12.9	4.2	1.7	1.3	0.9
Motorcycle or other means		58.5	16,785	2,785	4,650	1,935	2,050	5,360
	Row percent	(X)	100.0	16.6	27.7	11.5	12.2	31.9
	Column percent	(X)	0.8	0.9	0.7	0.4	0.5	2.0
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.