Rock County, Wisconsin
According to 2000 Census Bureau, there were 152307 residents, 58617 households, and 40403 families in the county. The population density was 211.4 people per square mile (81.62/kmē), it is 13th most densely populated county in Wisconsin. There were 62187 housing units at an average density of 86.3 per square mile (33.32/kmē). The average household size was 2.54 persons, and the average family size was 3.03 persons. In the county the population is diverse age-wise, with 26.5% under the age of 18, 8.6% from 18 to 24, 29.8% from 25 to 44, 22.3% from 45 to 64, and 12.7% who were 65 or older. For every 100 females there were 97 males. For every 100 females age 18 and over, there were 94.1 males. According to July 2008 Census Bureau estimates, the population of the county is 160213, The racial or ethnic makeup of the county was 148588 White, 7099 Black or African American, 568 American Indian, 1617 Asian, 87 Native Hawaiian, and 2254 from two or more races.
The median income for a household in the county was $45517, making it the 16th wealthiest county by median household income among the Wisconsin. The median income for a family in the county was $53380, it would be the 17th highest county by median family income in the U.S. state of Wisconsin. The per capita income for the county was $20895, it is the 17th highest county by per capita income in the U.S. state of Wisconsin.
In 2000, 39380 pupils and students, of which 19666 are male and 19714 are female, 25.86% of the total population, are in the education system. Of which, total enrollment of student are in, 2800 nursery or pri school, 2110 kindergarten, 19094 elementary school, 9096 high school and 6280 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 | Beloit City | Rock County | 16.67 | 16.44 | 0.23 | 35775 | 2176.6 | 16912 | 36414 |
| 2 | Clinton Village | Rock County | 1.31 | 1.31 | 0 | 2162 | 1652 | 18015 | 45987 |
| 3 | Edgerton City | Rock County, Dane County | 3.67 | 3.67 | 0 | 4933 | 1343.8 | 20481 | 44684 |
| 4 | Evansville City | Rock County | 2.22 | 2.17 | 0.05 | 4039 | 1863 | 20766 | 44229 |
| 5 | Footville Village | Rock County | 0.99 | 0.99 | 0 | 788 | 799.5 | 21688 | 47768 |
| 6 | Janesville City | Rock County | 28.12 | 27.54 | 0.59 | 59498 | 2160.6 | 22224 | 45961 |
| 7 | Milton City | Rock County | 3.23 | 3.23 | 0 | 5132 | 1587.8 | 22058 | 43201 |
| 8 | Orfordville Village | Rock County | 1.16 | 1.16 | 0 | 1272 | 1093.5 | 18169 | 46875 |
| Year | Population |
|---|---|
| April 2000 census | 152307 |
| April 2000 Estimate | 152307 |
| July 2000 Estimate | 152496 |
| July 2001 Estimate | 153156 |
| July 2002 Estimate | 153522 |
| July 2003 Estimate | 153989 |
| July 2004 Estimate | 155382 |
| July 2005 Estimate | 156394 |
| July 2006 Estimate | 158046 |
| July 2007 Estimate | 159398 |
| July 2008 Estimate | 160213 |
| School | Male | Female | Total |
|---|---|---|---|
| Nursery school | 1462 | 1338 | 2800 |
| Kindergarten | 1134 | 976 | 2110 |
| Elementary school | 9923 | 9171 | 19094 |
| High school | 4451 | 4645 | 9096 |
| College or graduate school | 2696 | 3584 | 6280 |
| Place | Median household income | Median family income | Per capita income |
|---|---|---|---|
| Rock County, Wisconsin | $45517 | $53380 | $20895 |
| Wisconsin, United States | $43791 | $52911 | $21271 |
| United States | $41994 | $50046 | $21587 |