CENSUS TRANSPORTATION PLANNING PACKAGE (CTPP 2000)


Table 1. Profile of Selected 1990 and 2000 Characteristics
Geographic Area: Black Hawk County, Iowa

Subject
1990 Census Census 2000 Change 1990 to 2000
Number Percent Number Percent Number Percent
POPULATION            
Total population 123,798 100.0 128,012 100.0 4,214 3.4
In households 117,476 94.9 121,553 95.0 4,077 3.5
In group quarters 6,322 5.1 6,459 5.0 137 2.2

HOUSEHOLD SIZE
           
Total households 47,162 100.0 49,736 100.0 2,574 5.5
1-person household 12,045 25.5 13,449 27.0 1,404 11.7
2-person household 16,397 34.8 17,585 35.4 1,188 7.2
3-person household 7,567 16.0 7,856 15.8 289 3.8
4-person household 6,841 14.5 6,715 13.5 -126 -1.8
5-or-more-person household 4,312 9.1 4,131 8.3 -181 -4.2
Mean number of persons per household 2.49 (X) 2.44 (X) -0.05 (X)

VEHICLES AVAILABLE1
           
Total households 47,162 100.0 49,736 100.0 2,574 5.5
No vehicle available 3,678 7.8 3,845 7.7 167 4.5
1 vehicle available 15,424 32.7 15,658 31.5 234 1.5
2 vehicles available 18,685 39.6 19,504 39.2 819 4.4
3 vehicles available 6,637 14.1 7,129 14.3 492 7.4
4 vehicles available 1,882 4.0 2,587 5.2 705 37.5
5 or more vehicles available 856 1.8 1,013 2.0 157 18.3
Mean vehicles per household 1.80 (X) 1.85 (X) 0.05 (X)

WORKERS BY SEX1
           
Workers 16 years and over 55,582 100.0 62,895 100.0 7,313 13.2
Male 29,381 52.9 31,815 50.6 2,434 8.3
Female 26,201 47.1 31,080 49.4 4,879 18.6

MEANS OF TRANSPORTATION TO WORK
           
Workers 16 years and over 55,582 100.0 62,897 100.0 7,315 13.2
Drove alone 45,080 81.1 52,078 82.8 6,998 15.5
Carpooled 4,289 7.7 5,312 8.4 1,023 23.9
Public transportation (including taxicab) 454 0.8 508 0.8 54 11.9
Bicycle or walked 3,482 6.3 2,897 4.6 -585 -16.8
Motorcycle or other means 239 0.4 269 0.4 30 12.6
Worked at home 2,038 3.7 1,833 2.9 -205 -10.1

TRAVEL TIME TO WORK
           
Workers who did not work at home 53,544 100.0 61,064 100.0 7,520 14.0
Less than 5 minutes 3,119 5.8 2,931 4.8 -188 -6.0
5 to 9 minutes 10,828 20.2 12,004 19.7 1,176 10.9
10 to 14 minutes 13,501 25.2 16,514 27.0 3,013 22.3
15 to 19 minutes 11,754 22.0 13,845 22.7 2,091 17.8
20 to 29 minutes 9,638 18.0 10,139 16.6 501 5.2
30 to 44 minutes 2,938 5.5 3,199 5.2 261 8.9
45 or more minutes 1,766 3.3 2,432 4.0 666 37.7
Mean travel time to work (minutes) 14.9 (X) 15.7 (X) 0.8 (X)

TIME LEAVING HOME TO GO TO WORK
           
Workers who did not work at home 53,544 100.0 61,064 100.0 7,520 14.0
5:00 a.m. to 6:59 a.m. 14,471 27.0 15,929 26.1 1,458 10.1
7:00 a.m. to 7:59 a.m. 15,953 29.8 18,056 29.6 2,103 13.2
8:00 a.m. to 8:59 a.m. 7,340 13.7 7,975 13.1 635 8.7
9:00 a.m. to 9:59 a.m. 2,796 5.2 2,760 4.5 -36 -1.3
10:00 a.m. to 11:59 a.m. 1,896 3.5 2,019 3.3 123 6.5
12:00 p.m. to 11:59 p.m. 10,080 18.8 12,265 20.1 2,185 21.7
12:00 a.m. to 4:59 a.m. 1,008 1.9 2,060 3.4 1,052 104.4
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: Black Hawk County, Iowa

Subject
Census 2000
Number Percent
POPULATION BY AGE    
Total population 128,012 100.0
Under 16 years 26,158 20.4
16 to 20 years 12,004 9.4
21 to 24 years 11,449 8.9
25 to 44 years 32,315 25.2
45 to 64 years 28,170 22.0
65 years and over 17,916 14.0
Mean age (years) 36.4 (X)

HOUSEHOLD INCOME IN 19991
   
Total households 49,736 100.0
Less than $15,000 8,482 17.1
$15,000 to 19,999 3,558 7.2
$20,000 to 24,999 3,635 7.3
$25,000 to 49,999 16,437 33.0
$50,000 to 74,999 9,886 19.9
$75,000 to 99,999 4,224 8.5
$100,000 or more 3,514 7.1
Mean household income (dollars) 47,679 (X)
Median household income (dollars) 37,266 (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 1.85 49,735 3,845 15,660 19,505 7,130 3,600
  Row percent (X) 100.0 7.7 31.5 39.2 14.3 7.2
Column percent (X) 100.0 100.0 100.0 100.0 100.0 100.0
1-person household 1.02 13,450 2,695 8,535 1,725 335 165
  Row percent (X) 100.0 20.0 63.5 12.8 2.5 1.2
Column percent (X) 27.0 70.1 54.5 8.8 4.7 4.6
2-person household 1.92 17,585 620 4,110 10,005 2,095 755
  Row percent (X) 100.0 3.5 23.4 56.9 11.9 4.3
Column percent (X) 35.4 16.1 26.2 51.3 29.4 21.0
3-person household 2.21 7,855 235 1,505 3,285 2,185 645
  Row percent (X) 100.0 3.0 19.2 41.8 27.8 8.2
Column percent (X) 15.8 6.1 9.6 16.8 30.6 17.9
4-or-more-person household 2.49 10,845 300 1,510 4,495 2,515 2,035
  Row percent (X) 100.0 2.8 13.9 41.4 23.2 18.8
Column percent (X) 21.8 7.8 9.6 23.0 35.3 56.5

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 15.7 61,065 14,935 30,360 10,140 3,200 2,430
  Row percent (X) 100.0 24.5 49.7 16.6 5.2 4.0
Column percent (X) 100.0 100.0 100.0 100.0 100.0 100.0
Drove alone 15.4 52,080 12,120 26,940 8,680 2,500 1,835
  Row percent (X) 100.0 23.3 51.7 16.7 4.8 3.5
Column percent (X) 85.3 81.2 88.7 85.6 78.1 75.5
Carpooled 18.9 5,310 890 2,455 1,145 480 340
  Row percent (X) 100.0 16.8 46.2 21.6 9.0 6.4
Column percent (X) 8.7 6.0 8.1 11.3 15.0 14.0
Public transportation (including taxicab) 28.9 510 35 100 145 140 90
  Row percent (X) 100.0 6.9 19.6 28.4 27.5 17.6
Column percent (X) 0.8 0.2 0.3 1.4 4.4 3.7
Bicycle or walked 9.3 2,895 1,850 795 85 65 100
  Row percent (X) 100.0 63.9 27.5 2.9 2.2 3.5
Column percent (X) 4.7 12.4 2.6 0.8 2.0 4.1
Motorcycle or other means 41.6 270 35 75 80 10 65
  Row percent (X) 100.0 13.0 27.8 29.6 3.7 24.1
Column percent (X) 0.4 0.2 0.2 0.8 0.3 2.7
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.