Hamlin County, South Dakota facts for kids
Quick facts for kids
Hamlin County
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Hamlin County Courthouse in Hayti in 1974
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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 (created 1878 (organized) |
| Named for | Hannibal Hamlin |
| Seat | Hayti |
| Largest city | Estelline |
| Area | |
| • Total | 538 sq mi (1,390 km2) |
| • Land | 507 sq mi (1,310 km2) |
| • Water | 31 sq mi (80 km2) 5.7% |
| Population
(2020)
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| • Total | 6,164 |
| • Estimate
(2021)
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6,255  |
| • Density | 11.457/sq mi (4.424/km2) |
| Time zone | UTC−6 (Central) |
| • Summer (DST) | UTC−5 (CDT) |
| Congressional district | At-large |
Hamlin County is a county in the U.S. state of South Dakota. As of the 2020 census, the population was 6,164. Its county seat is Hayti. The county was created in 1873 and organized in 1878. It was named for Hannibal Hamlin, Lincoln's first vice-president.
Contents
Geography
According to the U.S. Census Bureau, the county has a total area of 538 square miles (1,390 km2), of which 507 square miles (1,310 km2) is land and 31 square miles (80 km2) (5.7%) is water.
Major highways
Interstate 29
U.S. Highway 81
South Dakota Highway 21
South Dakota Highway 22
South Dakota Highway 28
Adjacent counties
- Codington County, South Dakota - north
- Deuel County, South Dakota - east
- Brookings County, South Dakota - southeast
- Kingsbury County, South Dakota - southwest
- Clark County, South Dakota - west
Demographics
| Historical population | |||
|---|---|---|---|
| Census | Pop. | %± | |
| 1880 | 693 | — | |
| 1890 | 4,623 | 567.1% | |
| 1900 | 5,945 | 28.6% | |
| 1910 | 7,475 | 25.7% | |
| 1920 | 8,054 | 7.7% | |
| 1930 | 8,299 | 3.0% | |
| 1940 | 7,562 | −8.9% | |
| 1950 | 7,058 | −6.7% | |
| 1960 | 6,303 | −10.7% | |
| 1970 | 5,172 | −17.9% | |
| 1980 | 5,261 | 1.7% | |
| 1990 | 4,974 | −5.5% | |
| 2000 | 5,540 | 11.4% | |
| 2010 | 5,903 | 6.6% | |
| 2020 | 6,164 | 4.4% | |
| 2021 (est.) | 6,255 | 6.0% | |
| 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 5,903 people, 2,108 households, and 1,483 families in the county. The population density was 11.6 inhabitants per square mile (4.5/km2). There were 2,760 housing units at an average density of 5.4 per square mile (2.1/km2). The racial makeup of the county was 96.7% white, 0.3% American Indian, 0.2% black or African American, 0.2% Asian, 1.8% from other races, and 0.8% from two or more races. Those of Hispanic or Latino origin made up 2.5% of the population. In terms of ancestry, 42.3% were German, 24.0% were Norwegian, 7.0% were English, 6.1% were Irish, 5.4% were Dutch, and 5.3% were American.
Of the 2,108 households, 33.2% had children under the age of 18 living with them, 61.4% were married couples living together, 5.6% had a female householder with no husband present, 29.6% were non-families, and 25.6% of all households were made up of individuals. The average household size was 2.68 and the average family size was 3.28. The median age was 36.8 years.
The median income for a household in the county was $44,439 and the median income for a family was $54,483. Males had a median income of $36,921 versus $24,645 for females. The per capita income for the county was $21,558. About 4.9% of families and 7.5% of the population were below the poverty line, including 11.5% of those under age 18 and 7.9% of those age 65 or over.
Communities
Cities
Towns
Census-designated place
Unincorporated communities
Townships
The county is divided into thirteen townships:
- Brantford
- Castlewood
- Cleveland
- Dempster
- Dixon
- Estelline
- Florence
- Garfield
- Hamlin
- Hayti
- Norden
- Opdahl
- Oxford
 | Hypatia |
 | Agnodice |
 | Aglaonice |
 | Mary the Jewess |
