Dubuque County, Iowa
As of the census of 2000, there were 89143 people in the county, organized into 33690 households, and 23111 families living in the county. The population density was 146.6 people per square mile (56.6/kmē), it is Iowa's sixth most densely populated county. There were 35505 housing units at an average density of 58.4 per square mile (22.55/kmē). The average household size was 2.51 people, and the average family size was 3.07 people. Age range in the county was well distributed with 25.6% under the age of 18, 10.2% from 18 to 24, 27.2% from 25 to 44, 22.3% from 45 to 64, and 14.7% who were 65 or older. For every 100 females there were 94.4 males. For every 100 females age 18 and over, there were 91.3 males. As of July 2008, the estimated population of the county is 92724, The racial makeup of the county was 96.29% White, 1.74% Black or African American, 0.18% American Indian, 0.78% Asian, 0.09% Native Hawaiian, and 0.9% from two or more races.
The median income for a household in the county was $39582, it would be the 21st highest county by median household income in the U.S. state of Iowa. The median income for a family in the county was $48742, making its Iowa's 17th highest county by median family income. The per capita income for the county was $19600, it is Iowa's 14th wealthiest county by per capita income.
In 2000, 24497 pupils and students, of which 48.95% are male and 51.05% are female, 27.48% of the total population, are in the education system. Of which, percentage of enrollment student are in, 7.16% nursery or pri school, 4.78% kindergarten, 43.02% elementary school, 21.72% high school and 23.33% College graduate school.
| Rank | City | County | Total Area mi2 | Land Area mi2 | Water Area mi2 | Population | Density mi2 | Per capita Income | House hold Income |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Asbury City | Dubuque County | 2.52 | 2.52 | 0 | 2450 | 971.8 | 21447 | 60100 |
| 2 | Balltown City | Dubuque County | 0.06 | 0.06 | 0 | 73 | 1233.4 | 24241 | 40625 |
| 3 | Bankston City | Dubuque County | 0.27 | 0.27 | 0 | 27 | 98.2 | 9886 | 18750 |
| 4 | Bernard City | Dubuque County | 0.09 | 0.09 | 0 | 97 | 1053.5 | 32671 | 30000 |
| 5 | Cascade City | Dubuque County, Jones County | 1.13 | 1.13 | 0 | 1958 | 1731.2 | 18280 | 40273 |
| 6 | Centralia City | Dubuque County | 0.55 | 0.55 | 0 | 101 | 183.9 | 15269 | 43333 |
| 7 | Dubuque City | Dubuque County | 27.72 | 26.48 | 1.23 | 57686 | 2178.2 | 19616 | 36785 |
| 8 | Durango City | Dubuque County | 0.03 | 0.03 | 0 | 24 | 709.8 | 19827 | 32188 |
| 9 | Dyersville City | Dubuque County, Delaware County | 4.6 | 4.6 | 0.01 | 4035 | 878.1 | 17195 | 38469 |
| 10 | Epworth City | Dubuque County | 1.31 | 1.31 | 0 | 1428 | 1089.8 | 15869 | 39938 |
| 11 | Farley City | Dubuque County | 1.41 | 1.41 | 0 | 1334 | 948.8 | 17186 | 41333 |
| 12 | Graf City | Dubuque County | 0.14 | 0.14 | 0 | 73 | 521.4 | 14438 | 56250 |
| 13 | Holy Cross City | Dubuque County | 0.28 | 0.28 | 0 | 339 | 1191.8 | 16629 | 38125 |
| 14 | Luxemburg City | Dubuque County | 0.46 | 0.46 | 0 | 246 | 540.2 | 15314 | 35833 |
| 15 | New Vienna City | Dubuque County | 0.45 | 0.45 | 0 | 400 | 889.1 | 25285 | 36500 |
| 16 | Peosta City | Dubuque County | 1.35 | 1.35 | 0 | 651 | 482.9 | 17499 | 56250 |
| 17 | Rickardsville City | Dubuque County | 0.86 | 0.86 | 0 | 191 | 222.1 | 22768 | 43750 |
| 18 | Sageville City | Dubuque County | 0.63 | 0.63 | 0 | 203 | 324.5 | 13700 | 29167 |
| 19 | Sherrill City | Dubuque County | 0.11 | 0.11 | 0 | 186 | 1753.9 | 21118 | 38125 |
| 20 | Worthington City | Dubuque County | 0.31 | 0.31 | 0 | 381 | 1228.9 | 14119 | 36250 |
| 21 | Zwingle City | Dubuque County, Jackson County | 0.16 | 0.16 | 0 | 100 | 640.9 | 18916 | 26667 |
| Year | Population |
|---|---|
| April 2000 census | 89143 |
| April 2000 Estimate | 89156 |
| July 2000 Estimate | 89231 |
| July 2001 Estimate | 88988 |
| July 2002 Estimate | 89205 |
| July 2003 Estimate | 90109 |
| July 2004 Estimate | 90633 |
| July 2005 Estimate | 90975 |
| July 2006 Estimate | 91398 |
| July 2007 Estimate | 92296 |
| July 2008 Estimate | 92724 |
| School | Male | Female | Total |
|---|---|---|---|
| Nursery school | 801 | 953 | 1754 |
| Kindergarten | 653 | 517 | 1170 |
| Elementary school | 5315 | 5224 | 10539 |
| High school | 2736 | 2584 | 5320 |
| College or graduate school | 2487 | 3227 | 5714 |
| Place | Median household income | Median family income | Per capita income |
|---|---|---|---|
| Dubuque County, Iowa | $39582 | $48742 | $19600 |
| Iowa, United States | $39469 | $48005 | $19674 |
| United States | $41994 | $50046 | $21587 |