CENSUS TRANSPORTATION PLANNING PACKAGE (CTPP 2000)


Table 1. Profile of Selected 1990 and 2000 Characteristics
Geographic Area: Ada County, Idaho

Subject
1990 Census Census 2000 Change 1990 to 2000
Number Percent Number Percent Number Percent
POPULATION            
Total population 205,775 100.0 300,904 100.0 95,129 46.2
In households 201,482 97.9 293,786 97.6 92,304 45.8
In group quarters 4,293 2.1 7,118 2.4 2,825 65.8

HOUSEHOLD SIZE
           
Total households 77,502 100.0 113,577 100.0 36,075 46.5
1-person household 18,218 23.5 26,909 23.7 8,691 47.7
2-person household 26,682 34.4 38,765 34.1 12,083 45.3
3-person household 12,972 16.7 18,940 16.7 5,968 46.0
4-person household 11,708 15.1 17,278 15.2 5,570 47.6
5-or-more-person household 7,922 10.2 11,685 10.3 3,763 47.5
Mean number of persons per household 2.60 (X) 2.59 (X) -0.01 (X)

VEHICLES AVAILABLE1
           
Total households 77,502 100.0 113,577 100.0 36,075 46.5
No vehicle available 2,991 3.9 5,100 4.5 2,109 70.5
1 vehicle available 22,618 29.2 33,436 29.4 10,818 47.8
2 vehicles available 33,646 43.4 49,385 43.5 15,739 46.8
3 vehicles available 12,898 16.6 18,725 16.5 5,827 45.2
4 vehicles available 3,878 5.0 5,205 4.6 1,327 34.2
5 or more vehicles available 1,471 1.9 1,726 1.5 255 17.3
Mean vehicles per household 1.96 (X) 1.92 (X) -0.04 (X)

WORKERS BY SEX1
           
Workers 16 years and over 103,285 100.0 155,665 100.0 52,380 50.7
Male 56,230 54.4 84,480 54.3 28,250 50.2
Female 47,055 45.6 71,185 45.7 24,130 51.3

MEANS OF TRANSPORTATION TO WORK
           
Workers 16 years and over 103,285 100.0 155,666 100.0 52,381 50.7
Drove alone 83,903 81.2 125,987 80.9 42,084 50.2
Carpooled 10,419 10.1 15,909 10.2 5,490 52.7
Public transportation (including taxicab) 840 0.8 1,291 0.8 451 53.7
Bicycle or walked 3,547 3.4 4,814 3.1 1,267 35.7
Motorcycle or other means 988 1.0 1,038 0.7 50 5.1
Worked at home 3,588 3.5 6,627 4.3 3,039 84.7

TRAVEL TIME TO WORK
           
Workers who did not work at home 99,697 100.0 149,039 100.0 49,342 49.5
Less than 5 minutes 2,891 2.9 3,929 2.6 1,038 35.9
5 to 9 minutes 13,510 13.6 16,403 11.0 2,893 21.4
10 to 14 minutes 22,367 22.4 28,821 19.3 6,454 28.9
15 to 19 minutes 24,140 24.2 33,410 22.4 9,270 38.4
20 to 29 minutes 24,031 24.1 41,199 27.6 17,168 71.4
30 to 44 minutes 9,656 9.7 18,774 12.6 9,118 94.4
45 or more minutes 3,102 3.1 6,503 4.4 3,401 109.6
Mean travel time to work (minutes) 16.9 (X) 19.3 (X) 2.4 (X)

TIME LEAVING HOME TO GO TO WORK
           
Workers who did not work at home 99,697 100.0 149,039 100.0 49,342 49.5
5:00 a.m. to 6:59 a.m. 18,091 18.1 32,472 21.8 14,381 79.5
7:00 a.m. to 7:59 a.m. 41,041 41.2 52,970 35.5 11,929 29.1
8:00 a.m. to 8:59 a.m. 16,654 16.7 26,389 17.7 9,735 58.5
9:00 a.m. to 9:59 a.m. 5,600 5.6 8,813 5.9 3,213 57.4
10:00 a.m. to 11:59 a.m. 3,566 3.6 5,713 3.8 2,147 60.2
12:00 p.m. to 11:59 p.m. 13,213 13.3 19,382 13.0 6,169 46.7
12:00 a.m. to 4:59 a.m. 1,532 1.5 3,300 2.2 1,768 115.4
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.
CENSUS TRANSPORTATION PLANNING PACKAGE (CTPP 2000)

Table 2. Profile of Selected 2000 Characteristics
Geographic Area: Ada County, Idaho

Subject
Census 2000
Number Percent
POPULATION BY AGE    
Total population 300,904 100.0
Under 16 years 72,987 24.3
16 to 20 years 21,214 7.1
21 to 24 years 18,041 6.0
25 to 44 years 98,680 32.8
45 to 64 years 62,617 20.8
65 years and over 27,365 9.1
Mean age (years) 33.6 (X)

HOUSEHOLD INCOME IN 19991
   
Total households 113,577 100.0
Less than $15,000 12,090 10.6
$15,000 to 19,999 6,605 5.8
$20,000 to 24,999 7,703 6.8
$25,000 to 49,999 35,066 30.9
$50,000 to 74,999 25,071 22.1
$75,000 to 99,999 13,438 11.8
$100,000 or more 13,604 12.0
Mean household income (dollars) 58,763 (X)
Median household income (dollars) 46,140 (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 1.92 113,575 5,100 33,435 49,385 18,725 6,930
  Row percent (X) 100.0 4.5 29.4 43.5 16.5 6.1
Column percent (X) 100.0 100.0 100.0 100.0 100.0 100.0
1-person household 1.11 26,910 3,190 18,805 4,095 610 205
  Row percent (X) 100.0 11.9 69.9 15.2 2.3 0.8
Column percent (X) 23.7 62.5 56.2 8.3 3.3 3.0
2-person household 1.98 38,765 970 7,985 22,490 5,915 1,410
  Row percent (X) 100.0 2.5 20.6 58.0 15.3 3.6
Column percent (X) 34.1 19.0 23.9 45.5 31.6 20.3
3-person household 2.25 18,940 435 3,185 8,620 5,150 1,550
  Row percent (X) 100.0 2.3 16.8 45.5 27.2 8.2
Column percent (X) 16.7 8.5 9.5 17.5 27.5 22.4
4-or-more-person household 2.39 28,965 510 3,465 14,180 7,050 3,760
  Row percent (X) 100.0 1.8 12.0 49.0 24.3 13.0
Column percent (X) 25.5 10.0 10.4 28.7 37.7 54.3

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 19.3 149,040 20,330 62,230 41,200 18,775 6,505
  Row percent (X) 100.0 13.6 41.8 27.6 12.6 4.4
Column percent (X) 100.0 100.0 100.0 100.0 100.0 100.0
Drove alone 18.8 125,985 16,510 53,880 36,120 15,205 4,270
  Row percent (X) 100.0 13.1 42.8 28.7 12.1 3.4
Column percent (X) 84.5 81.2 86.6 87.7 81.0 65.6
Carpooled 22.0 15,910 1,765 6,065 4,120 2,675 1,285
  Row percent (X) 100.0 11.1 38.1 25.9 16.8 8.1
Column percent (X) 10.7 8.7 9.7 10.0 14.2 19.8
Public transportation (including taxicab) 33.2 1,290 100 200 210 410 375
  Row percent (X) 100.0 7.8 15.5 16.3 31.8 29.1
Column percent (X) 0.9 0.5 0.3 0.5 2.2 5.8
Bicycle or walked 14.0 4,815 1,795 1,805 620 385 210
  Row percent (X) 100.0 37.3 37.5 12.9 8.0 4.4
Column percent (X) 3.2 8.8 2.9 1.5 2.1 3.2
Motorcycle or other means 52.9 1,040 165 280 130 105 360
  Row percent (X) 100.0 15.9 26.9 12.5 10.1 34.6
Column percent (X) 0.7 0.8 0.4 0.3 0.6 5.5
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.