| CENSUS TRANSPORTATION PLANNING PACKAGE (CTPP 2000) Table 1. Profile of Selected 1990 and 2000 Characteristics | |||||||||
| Geographic Area: Dubuque County, Iowa | |||||||||
Subject |
1990 Census | Census 2000 | Change 1990 to 2000 | ||||||
| Number | Percent | Number | Percent | Number | Percent | ||||
| POPULATION | |||||||||
| Total population | 86,403 | 100.0 | 89,143 | 100.0 | 2,740 | 3.2 | |||
| In households | 82,393 | 95.4 | 84,593 | 94.9 | 2,200 | 2.7 | |||
| In group quarters | 4,010 | 4.6 | 4,550 | 5.1 | 540 | 13.5 | |||
HOUSEHOLD SIZE |
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| Total households | 30,689 | 100.0 | 33,703 | 100.0 | 3,014 | 9.8 | |||
| 1-person household | 7,495 | 24.4 | 9,004 | 26.7 | 1,509 | 20.1 | |||
| 2-person household | 9,478 | 30.9 | 11,437 | 33.9 | 1,959 | 20.7 | |||
| 3-person household | 5,016 | 16.3 | 5,136 | 15.2 | 120 | 2.4 | |||
| 4-person household | 4,874 | 15.9 | 4,757 | 14.1 | -117 | -2.4 | |||
| 5-or-more-person household | 3,826 | 12.5 | 3,369 | 10.0 | -457 | -11.9 | |||
| Mean number of persons per household | 2.68 | (X) | 2.51 | (X) | -0.17 | (X) | |||
VEHICLES AVAILABLE1 |
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| Total households | 30,689 | 100.0 | 33,703 | 100.0 | 3,014 | 9.8 | |||
| No vehicle available | 2,547 | 8.3 | 2,420 | 7.2 | -127 | -5.0 | |||
| 1 vehicle available | 9,951 | 32.4 | 10,657 | 31.6 | 706 | 7.1 | |||
| 2 vehicles available | 12,629 | 41.2 | 14,112 | 41.9 | 1,483 | 11.7 | |||
| 3 vehicles available | 4,057 | 13.2 | 4,804 | 14.3 | 747 | 18.4 | |||
| 4 vehicles available | 1,096 | 3.6 | 1,212 | 3.6 | 116 | 10.6 | |||
| 5 or more vehicles available | 409 | 1.3 | 498 | 1.5 | 89 | 21.8 | |||
| Mean vehicles per household | 1.76 | (X) | 1.80 | (X) | 0.04 | (X) | |||
WORKERS BY SEX1 |
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| Workers 16 years and over | 41,584 | 100.0 | 45,165 | 100.0 | 3,581 | 8.6 | |||
| Male | 22,237 | 53.5 | 23,315 | 51.6 | 1,078 | 4.8 | |||
| Female | 19,347 | 46.5 | 21,855 | 48.4 | 2,508 | 13.0 | |||
MEANS OF TRANSPORTATION TO WORK |
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| Workers 16 years and over | 41,584 | 100.0 | 45,167 | 100.0 | 3,583 | 8.6 | |||
| Drove alone | 30,738 | 73.9 | 36,971 | 81.9 | 6,233 | 20.3 | |||
| Carpooled | 4,571 | 11.0 | 3,696 | 8.2 | -875 | -19.1 | |||
| Public transportation (including taxicab) | 375 | 0.9 | 264 | 0.6 | -111 | -29.6 | |||
| Bicycle or walked | 3,041 | 7.3 | 2,255 | 5.0 | -786 | -25.8 | |||
| Motorcycle or other means | 281 | 0.7 | 148 | 0.3 | -133 | -47.3 | |||
| Worked at home | 2,578 | 6.2 | 1,833 | 4.1 | -745 | -28.9 | |||
TRAVEL TIME TO WORK |
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| Workers who did not work at home | 39,006 | 100.0 | 43,334 | 100.0 | 4,328 | 11.1 | |||
| Less than 5 minutes | 2,629 | 6.7 | 2,774 | 6.4 | 145 | 5.5 | |||
| 5 to 9 minutes | 8,731 | 22.4 | 9,345 | 21.6 | 614 | 7.0 | |||
| 10 to 14 minutes | 10,265 | 26.3 | 12,108 | 27.9 | 1,843 | 18.0 | |||
| 15 to 19 minutes | 7,876 | 20.2 | 8,136 | 18.8 | 260 | 3.3 | |||
| 20 to 29 minutes | 5,646 | 14.5 | 6,172 | 14.2 | 526 | 9.3 | |||
| 30 to 44 minutes | 2,487 | 6.4 | 3,162 | 7.3 | 675 | 27.1 | |||
| 45 or more minutes | 1,372 | 3.5 | 1,637 | 3.8 | 265 | 19.3 | |||
| Mean travel time to work (minutes) | 14.6 | (X) | 15.5 | (X) | 1.0 | (X) | |||
TIME LEAVING HOME TO GO TO WORK |
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| Workers who did not work at home | 39,006 | 100.0 | 43,334 | 100.0 | 4,328 | 11.1 | |||
| 5:00 a.m. to 6:59 a.m. | 10,998 | 28.2 | 12,423 | 28.7 | 1,425 | 13.0 | |||
| 7:00 a.m. to 7:59 a.m. | 11,286 | 28.9 | 12,903 | 29.8 | 1,617 | 14.3 | |||
| 8:00 a.m. to 8:59 a.m. | 5,507 | 14.1 | 5,374 | 12.4 | -133 | -2.4 | |||
| 9:00 a.m. to 9:59 a.m. | 1,312 | 3.4 | 1,613 | 3.7 | 301 | 22.9 | |||
| 10:00 a.m. to 11:59 a.m. | 1,355 | 3.5 | 1,415 | 3.3 | 60 | 4.4 | |||
| 12:00 p.m. to 11:59 p.m. | 7,671 | 19.7 | 8,097 | 18.7 | 426 | 5.6 | |||
| 12:00 a.m. to 4:59 a.m. | 877 | 2.2 | 1,509 | 3.5 | 632 | 72.1 | |||
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| CENSUS TRANSPORTATION PLANNING PACKAGE (CTPP 2000) Table 2. Profile of Selected 2000 Characteristics | |||||||||||
| Geographic Area: Dubuque County, Iowa | |||||||||||
Subject |
Census 2000 | ||||||||||
| Number | Percent | ||||||||||
| POPULATION BY AGE | |||||||||||
| Total population | 89,143 | 100.0 | |||||||||
| Under 16 years | 20,222 | 22.7 | |||||||||
| 16 to 20 years | 6,935 | 7.8 | |||||||||
| 21 to 24 years | 4,750 | 5.3 | |||||||||
| 25 to 44 years | 24,216 | 27.2 | |||||||||
| 45 to 64 years | 19,865 | 22.3 | |||||||||
| 65 years and over | 13,155 | 14.8 | |||||||||
| Mean age (years) | 37.0 | (X) | |||||||||
HOUSEHOLD INCOME IN 19991 |
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| Total households | 33,703 | 100.0 | |||||||||
| Less than $15,000 | 4,394 | 13.0 | |||||||||
| $15,000 to 19,999 | 2,388 | 7.1 | |||||||||
| $20,000 to 24,999 | 2,663 | 7.9 | |||||||||
| $25,000 to 49,999 | 11,764 | 34.9 | |||||||||
| $50,000 to 74,999 | 7,301 | 21.7 | |||||||||
| $75,000 to 99,999 | 2,762 | 8.2 | |||||||||
| $100,000 or more | 2,431 | 7.2 | |||||||||
| Mean household income (dollars) | 50,560 | (X) | |||||||||
| Median household income (dollars) | 39,582 | (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 | 1.80 | 33,705 | 2,420 | 10,655 | 14,110 | 4,805 | 1,710 | ||||
| Row percent | (X) | 100.0 | 7.2 | 31.6 | 41.9 | 14.3 | 5.1 | ||||
| Column percent | (X) | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | ||||
| 1-person household | 0.96 | 9,005 | 1,830 | 6,055 | 890 | 165 | 65 | ||||
| Row percent | (X) | 100.0 | 20.3 | 67.2 | 9.9 | 1.8 | 0.7 | ||||
| Column percent | (X) | 26.7 | 75.6 | 56.8 | 6.3 | 3.4 | 3.8 | ||||
| 2-person household | 1.84 | 11,435 | 365 | 2,930 | 6,610 | 1,290 | 240 | ||||
| Row percent | (X) | 100.0 | 3.2 | 25.6 | 57.8 | 11.3 | 2.1 | ||||
| Column percent | (X) | 33.9 | 15.1 | 27.5 | 46.8 | 26.8 | 14.0 | ||||
| 3-person household | 2.24 | 5,135 | 105 | 870 | 2,430 | 1,320 | 410 | ||||
| Row percent | (X) | 100.0 | 2.0 | 16.9 | 47.3 | 25.7 | 8.0 | ||||
| Column percent | (X) | 15.2 | 4.3 | 8.2 | 17.2 | 27.5 | 24.0 | ||||
| 4-or-more-person household | 2.41 | 8,125 | 120 | 805 | 4,185 | 2,025 | 995 | ||||
| Row percent | (X) | 100.0 | 1.5 | 9.9 | 51.5 | 24.9 | 12.2 | ||||
| Column percent | (X) | 24.1 | 5.0 | 7.6 | 29.7 | 42.1 | 58.2 | ||||
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 | 15.5 | 43,335 | 12,120 | 20,245 | 6,170 | 3,160 | 1,635 | ||||
| Row percent | (X) | 100.0 | 28.0 | 46.7 | 14.2 | 7.3 | 3.8 | ||||
| Column percent | (X) | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | ||||
| Drove alone | 15.3 | 36,970 | 9,960 | 17,775 | 5,435 | 2,590 | 1,210 | ||||
| Row percent | (X) | 100.0 | 26.9 | 48.1 | 14.7 | 7.0 | 3.3 | ||||
| Column percent | (X) | 85.3 | 82.2 | 87.8 | 88.1 | 82.0 | 74.0 | ||||
| Carpooled | 20.5 | 3,695 | 785 | 1,635 | 535 | 455 | 285 | ||||
| Row percent | (X) | 100.0 | 21.2 | 44.2 | 14.5 | 12.3 | 7.7 | ||||
| Column percent | (X) | 8.5 | 6.5 | 8.1 | 8.7 | 14.4 | 17.4 | ||||
| Public transportation (including taxicab) | 29.8 | 265 | 0 | 90 | 50 | 45 | 85 | ||||
| Row percent | (X) | 100.0 | 0.0 | 34.0 | 18.9 | 17.0 | 32.1 | ||||
| Column percent | (X) | 0.6 | 0.0 | 0.4 | 0.8 | 1.4 | 5.2 | ||||
| Bicycle or walked | 9.1 | 2,255 | 1,330 | 690 | 125 | 60 | 45 | ||||
| Row percent | (X) | 100.0 | 59.0 | 30.6 | 5.5 | 2.7 | 2.0 | ||||
| Column percent | (X) | 5.2 | 11.0 | 3.4 | 2.0 | 1.9 | 2.8 | ||||
| Motorcycle or other means | 24.6 | 150 | 45 | 55 | 25 | 10 | 10 | ||||
| Row percent | (X) | 100.0 | 30.0 | 36.7 | 16.7 | 6.7 | 6.7 | ||||
| Column percent | (X) | 0.3 | 0.4 | 0.3 | 0.4 | 0.3 | 0.6 | ||||
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