Rock County, Minnesota
| Rock County, Minnesota | |
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Rock County Courthouse
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 Location in the U.S. state of Minnesota |
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 Minnesota's location in the U.S. |
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| Founded | May 23, 1857 (created) 1870 (organized) |
| Named for | The prominent rock deposit in the county |
| Seat | Luverne |
| Largest city | Luverne |
| Area | |
| • Total | 483 sq mi (1,251 km2) |
| • Land | 482 sq mi (1,248 km2) |
| • Water | 0.3 sq mi (1 km2), 0.06% |
| Population (est.) | |
| • (2015) | 9,600 |
| • Density | 20/sq mi (8/km²) |
| Congressional district | 1st |
| Time zone | Central: UTC-6/-5 |
| Website | www |
Rock County is a county located in the U.S. state of Minnesota, in the far southwestern corner of the state. As of the 2010 census, the population was 9,687. Its county seat is Luverne. The county was formed in 1857 and organized in 1870. Rock County was named for the rocky soil.
According to the U.S. Census Bureau, the county has a total area of 483 square miles (1,250 km2), of which 482 square miles (1,250 km2) is land and 0.3 square miles (0.78 km2) (0.06%) is water.
Despite Rock County not containing any natural lakes (the other three being Mower, Olmsted, and Pipestone), it does have a small lake created by a dam in Blue Mounds State Park.
As of the census of 2000, there were 9,721 people, 3,843 households, and 2,705 families residing in the county. The population density was 20 people per square mile (8/km²). There were 4,137 housing units at an average density of 9 per square mile (3/km²). The racial makeup of the county was 97.27% White, 0.53% Black or African American, 0.43% Native American, 0.62% Asian, 0.02% Pacific Islander, 0.53% from other races, and 0.59% from two or more races. 1.28% of the population were Hispanic or Latino of any race. 41.4% were of German, 23.8% Dutch and 16.5% Norwegian ancestry.
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