| County: | Spink County |
| State: | South Dakota |
| Founded Year: | 1873 (created) 1879 (organized) |
| Seat Wl: | Redfield |
| Largest City Wl: | Redfield |
| Area Total Sq Mi: | 1510 |
| Area Land Sq Mi: | 1504 |
| Area Water Sq Mi: | 5.8 |
| Area Percentage: | 0.4 |
| Population As Of: | 2020 |
| Population Total: | 6361 |
| Pop Est As Of: | 2023 |
| Population Est: | 6166 |
| Population Density Sq Mi: | auto |
| Time Zone: | Central |
| Web: | www.spinkcounty-sd.org |
| Named For: | S.L. Spink |
| District: | At-large |
| Ex Image: | SPINK COUNTY COURTHOUSE, REDFIELD, SD.jpg |
| Ex Image Cap: | Spink County Courthouse (2013) |
Spink County is a county in the U.S. state of South Dakota. As of the 2020 census, the population was 6,361.[1] Its county seat is Redfield.[2] The county was created in 1873, and was organized in 1879 within Dakota Territory.[3]
The terrain of Spink County consists of rolling hills, dedicated to agriculture. The James River flows southerly through the central portion of the county.[4] The terrain slopes to the south; its highest point is in its northeast corner, at 1424feet ASL.[5] The county has a total area of, of which is land and (0.4%) is water.[6]
As of the 2020 census, there were 6,361 people, 2,520 households, and 1,560 families residing in the county.[7] The population density was . There were 2,983 housing units.
As of the 2010 census, there were 6,415 people, 2,608 households, and 1,677 families in the county. The population density was . There were 3,139 housing units at an average density of 2.1/mi2. The racial makeup of the county was 97.1% white, 1.2% American Indian, 0.3% black or African American, 0.1% Asian, 0.4% from other races, and 0.9% from two or more races. Those of Hispanic or Latino origin made up 1.1% of the population. In terms of ancestry, 52.6% were German, 11.6% were Norwegian, 10.0% were Irish, 9.2% were English, and 5.5% were American.
Of the 2,608 households, 26.5% had children under the age of 18 living with them, 53.4% were married couples living together, 6.4% had a female householder with no husband present, 35.7% were non-families, and 31.8% of all households were made up of individuals. The average household size was 2.30 and the average family size was 2.89. The median age was 44.4 years.
The median income for a household in the county was $45,000 and the median income for a family was $60,639. Males had a median income of $40,273 versus $26,139 for females. The per capita income for the county was $25,295. About 8.2% of families and 17.0% of the population were below the poverty line, including 19.0% of those under age 18 and 12.0% of those age 65 or over.
Several Hutterite communities are in Spink County, including near Ashton and Stratford.[8]
Spink County was historically a swing county, but in the past few decades has become fairly Republican. In no national election since 1992 has the county selected the Democratic Party candidate (as of 2020).