Lake County, South Dakota facts for kids
Quick facts for kids
Lake County
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Lake County Court House
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Location within the U.S. state of South Dakota
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 South Dakota's location within the U.S. |
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| Country |  United States |
| State |  South Dakota |
| Founded | 1873 |
| Seat | Madison |
| Largest city | Madison |
| Area | |
| • Total | 575 sq mi (1,490 km2) |
| • Land | 563 sq mi (1,460 km2) |
| • Water | 12 sq mi (30 km2) 2.1% |
| Population
(2020)
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| • Total | 11,059 |
| • Estimate
(2021)
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10,851  |
| • Density | 19.233/sq mi (7.426/km2) |
| Time zone | UTC−6 (Central) |
| • Summer (DST) | UTC−5 (CDT) |
| Congressional district | At-large |
Lake County is a county in the U.S. state of South Dakota. As of the 2020 United States Census, the population was 11,059. Its county seat is Madison. The county was formed in 1873.
Contents
Geography
According to the U.S. Census Bureau, the county has a total area of 575 square miles (1,490 km2), of which 563 square miles (1,460 km2) is land and 12 square miles (31 km2) (2.1%) is water.
Lakes
- Buffalo Slough
- Brandt Lake
- Davis Slough
- Gilman Lake
- Green Lake
- Lake Badus
- Lake Herman
- Lake Madison
- Long Lake
- Mud Lake
- Pelican Lake
- Round Lake
Major highways
U.S. Highway 81
South Dakota Highway 19
South Dakota Highway 34
Adjacent counties
- Brookings County, South Dakota - northeast
- Moody County, South Dakota - east
- Minnehaha County, South Dakota - southeast
- McCook County, South Dakota - southwest
- Miner County, South Dakota - west
- Kingsbury County, South Dakota - northwest
Demographics
| Historical population | |||
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| Census | Pop. | %± | |
| 1880 | 2,657 | — | |
| 1890 | 7,508 | 182.6% | |
| 1900 | 9,137 | 21.7% | |
| 1910 | 10,711 | 17.2% | |
| 1920 | 12,257 | 14.4% | |
| 1930 | 12,379 | 1.0% | |
| 1940 | 12,412 | 0.3% | |
| 1950 | 11,792 | −5.0% | |
| 1960 | 11,764 | −0.2% | |
| 1970 | 11,456 | −2.6% | |
| 1980 | 10,724 | −6.4% | |
| 1990 | 10,550 | −1.6% | |
| 2000 | 11,276 | 6.9% | |
| 2010 | 11,200 | −0.7% | |
| 2020 | 11,059 | −1.3% | |
| 2021 (est.) | 10,851 | −3.1% | |
| US Decennial Census 1790-1960 1900-1990 1990-2000 2010-2020 |
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2010 census
As of the 2010 United States Census, there were 11,200 people, 4,483 households, and 2,814 families in the county. The population density was 19.9 inhabitants per square mile (7.7/km2). There were 5,559 housing units at an average density of 9.9 per square mile (3.8/km2). The racial makeup of the county was 96.2% white, 0.7% Asian, 0.7% American Indian, 0.5% black or African American, 0.8% from other races, and 1.1% from two or more races. Those of Hispanic or Latino origin made up 1.6% of the population. In terms of ancestry, 50.7% were German, 20.6% were Norwegian, 12.4% were Irish, 6.6% were English, 6.2% were Dutch, 5.0% were Danish, and 5.0% were American.
Of the 4,483 households, 26.7% had children under the age of 18 living with them, 53.0% were married couples living together, 6.8% had a female householder with no husband present, 37.2% were non-families, and 30.9% of all households were made up of individuals. The average household size was 2.30 and the average family size was 2.88. The median age was 39.9 years.
The median income for a household in the county was $45,606 and the median income for a family was $57,753. Males had a median income of $36,370 versus $25,898 for females. The per capita income for the county was $22,447. About 6.5% of families and 12.1% of the population were below the poverty line, including 12.8% of those under age 18 and 8.8% of those age 65 or over.
Communities
City
- Madison (county seat)
Towns
Village
Census-designated places
- Brant Lake South
- Chester
- Lake Madison
- Winfred
Other unincorporated communities
Townships
The county is divided into sixteen townships:
- Badus
- Chester
- Clarno
- Concord
- Farmington
- Franklin
- Herman
- Lake View
- Le Roy
- Nunda
- Orland
- Rutland
- Summit
- Wayne
- Wentworth
- Winfred
Historical townsite
- Saranac
See also
In Spanish: Condado de Lake (Dakota del Sur) para niños
