South Dakota Population By County in 2018
Updated on January 27, 2024.
According to the US Census Bureau population estimates, there were 879,386 people living in South Dakota in 2018. Minnehaha County was the most populated county with 191,250 residents, followed by Pennington County with 112,260 residents, and Lincoln County with 58,881 residents. Jones County with a population of 924 was the least populated county in South Dakota in 2018.
Use the map below to interactively explore the population for each county in South Dakota in 2018. The data can also be explored further by sorting and filtering with the table below.
You can see similar information for other states and by state for the United States.
Related Topics: South Dakota Census Vintage Data Topic List.
Data Source: US Census Bureau (Vintage).
See this for other years:
South Dakota Population By County (2018)
Table of South Dakota Population By County in 2018
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| County | Population | % of State Population |
|---|---|---|
| Aurora | 2,775 | 0.32% |
| Beadle | 18,239 | 2.07% |
| Bennett | 3,482 | 0.40% |
| Bon Homme | 6,919 | 0.79% |
| Brookings | 35,266 | 4.01% |
| Brown | 39,103 | 4.45% |
| Brule | 5,185 | 0.59% |
| Buffalo | 2,039 | 0.23% |
| Butte | 10,259 | 1.17% |
| Campbell | 1,377 | 0.16% |
| Charles Mix | 9,309 | 1.06% |
| Clark | 3,721 | 0.42% |
| Clay | 13,985 | 1.59% |
| Codington | 28,098 | 3.20% |
| Corson | 4,137 | 0.47% |
| Custer | 8,821 | 1.00% |
| Davison | 19,847 | 2.26% |
| Day | 5,487 | 0.62% |
| Deuel | 4,317 | 0.49% |
| Dewey | 5,904 | 0.67% |
| Douglas | 2,919 | 0.33% |
| Edmunds | 3,853 | 0.44% |
| Fall River | 6,730 | 0.77% |
| Faulk | 2,320 | 0.26% |
| Grant | 7,123 | 0.81% |
| Gregory | 4,197 | 0.48% |
| Haakon | 1,888 | 0.22% |
| Hamlin | 6,113 | 0.70% |
| Hand | 3,234 | 0.37% |
| Hanson | 3,369 | 0.38% |
| Harding | 1,252 | 0.14% |
| Hughes | 17,663 | 2.01% |
| Hutchinson | 7,292 | 0.83% |
| Hyde | 1,265 | 0.14% |
| Jackson | 3,277 | 0.37% |
| Jerauld | 2,017 | 0.23% |
| Jones | 924 | 0.11% |
| Kingsbury | 4,896 | 0.56% |
| Lake | 13,045 | 1.48% |
| Lawrence | 25,776 | 2.93% |
| Lincoln | 58,881 | 6.70% |
| Lyman | 3,796 | 0.43% |
| McCook | 5,572 | 0.63% |
| McPherson | 2,405 | 0.27% |
| Marshall | 4,873 | 0.55% |
| Meade | 28,305 | 3.22% |
| Mellette | 2,032 | 0.23% |
| Miner | 2,211 | 0.25% |
| Minnehaha | 191,250 | 21.75% |
| Moody | 6,479 | 0.74% |
| Oglala Lakota | 14,324 | 1.63% |
| Pennington | 112,260 | 12.77% |
| Perkins | 2,899 | 0.33% |
| Potter | 2,205 | 0.25% |
| Roberts | 10,358 | 1.18% |
| Sanborn | 2,387 | 0.27% |
| Spink | 6,469 | 0.74% |
| Stanley | 3,035 | 0.35% |
| Sully | 1,373 | 0.16% |
| Todd | 10,341 | 1.18% |
| Tripp | 5,484 | 0.62% |
| Turner | 8,392 | 0.95% |
| Union | 15,616 | 1.78% |
| Walworth | 5,450 | 0.62% |
| Yankton | 22,807 | 2.59% |
| Ziebach | 2,759 | 0.31% |