South Dakota county populations
66 supported county-equivalent records in South Dakota; July 1, 2025 population, 2024–2025 growth and 2025 land-area density.
Population totals use July 1, 2025 observations from PEP Vintage 2025. Change is measured since July 1, 2024. County equivalents are included, including Connecticut planning regions. Missing density is displayed as unavailable, never as zero.
Population table and filters
Whole-dataset downloads| Place | Population · 2025 | Change · 2024–25 | Growth · 2024–25 | People / sq. mi. |
|---|---|---|---|---|
| Minnehaha CountySouth Dakota · County equivalent · 46099 | 212,691 | +3,275 | +1.56% | 263.6 |
| Pennington CountySouth Dakota · County equivalent · 46103 | 116,792 | +480 | +0.41% | 42.1 |
| Lincoln CountySouth Dakota · County equivalent · 46083 | 77,145 | +2,022 | +2.69% | 133.6 |
| Brookings CountySouth Dakota · County equivalent · 46011 | 37,635 | +821 | +2.23% | 47.5 |
| Brown CountySouth Dakota · County equivalent · 46013 | 37,561 | -60 | -0.16% | 21.9 |
| Meade CountySouth Dakota · County equivalent · 46093 | 30,711 | -164 | -0.53% | 8.8 |
| Codington CountySouth Dakota · County equivalent · 46029 | 29,562 | +292 | +1.00% | 43.0 |
| Lawrence CountySouth Dakota · County equivalent · 46081 | 29,459 | +750 | +2.61% | 36.8 |
| Yankton CountySouth Dakota · County equivalent · 46135 | 23,635 | +58 | +0.25% | 45.3 |
| Davison CountySouth Dakota · County equivalent · 46035 | 20,069 | +79 | +0.40% | 46.1 |
| Beadle CountySouth Dakota · County equivalent · 46005 | 19,624 | +102 | +0.52% | 15.6 |
| Hughes CountySouth Dakota · County equivalent · 46065 | 17,570 | +13 | +0.07% | 23.7 |
| Union CountySouth Dakota · County equivalent · 46127 | 17,402 | +29 | +0.17% | 37.8 |
| Clay CountySouth Dakota · County equivalent · 46027 | 15,031 | -159 | -1.05% | 36.5 |
| Oglala Lakota CountySouth Dakota · County equivalent · 46102 | 13,338 | -78 | -0.58% | 6.4 |
| Lake CountySouth Dakota · County equivalent · 46079 | 10,993 | -51 | -0.46% | 19.5 |
| Butte CountySouth Dakota · County equivalent · 46019 | 10,856 | -29 | -0.27% | 4.8 |
| Roberts CountySouth Dakota · County equivalent · 46109 | 10,255 | -23 | -0.22% | 9.3 |
| Custer CountySouth Dakota · County equivalent · 46033 | 9,431 | +107 | +1.15% | 6.1 |
| Turner CountySouth Dakota · County equivalent · 46125 | 9,314 | +77 | +0.83% | 15.1 |
| Charles Mix CountySouth Dakota · County equivalent · 46023 | 9,303 | +27 | +0.29% | 8.5 |
| Todd CountySouth Dakota · County equivalent · 46121 | 8,863 | -50 | -0.56% | 6.4 |
| Grant CountySouth Dakota · County equivalent · 46051 | 7,534 | -79 | -1.04% | 11.1 |
| Fall River CountySouth Dakota · County equivalent · 46047 | 7,467 | +54 | +0.73% | 4.3 |
| Hutchinson CountySouth Dakota · County equivalent · 46067 | 7,413 | +12 | +0.16% | 9.1 |
| Bon Homme CountySouth Dakota · County equivalent · 46009 | 7,244 | +93 | +1.30% | 12.9 |
| Hamlin CountySouth Dakota · County equivalent · 46057 | 6,900 | +170 | +2.53% | 13.6 |
| Moody CountySouth Dakota · County equivalent · 46101 | 6,632 | +33 | +0.50% | 12.8 |
| Spink CountySouth Dakota · County equivalent · 46115 | 6,155 | +1 | +0.02% | 4.1 |
| McCook CountySouth Dakota · County equivalent · 46087 | 5,964 | +83 | +1.41% | 10.4 |
| Tripp CountySouth Dakota · County equivalent · 46123 | 5,708 | -30 | -0.52% | 3.5 |
| Day CountySouth Dakota · County equivalent · 46037 | 5,484 | +37 | +0.68% | 5.3 |
| Dewey CountySouth Dakota · County equivalent · 46041 | 5,419 | +37 | +0.69% | 2.4 |
| Kingsbury CountySouth Dakota · County equivalent · 46077 | 5,284 | +4 | +0.08% | 6.3 |
| Brule CountySouth Dakota · County equivalent · 46015 | 5,278 | -19 | -0.36% | 6.5 |
| Walworth CountySouth Dakota · County equivalent · 46129 | 5,217 | -27 | -0.51% | 7.4 |
| Marshall CountySouth Dakota · County equivalent · 46091 | 4,426 | -9 | -0.20% | 5.3 |
| Deuel CountySouth Dakota · County equivalent · 46039 | 4,408 | +32 | +0.73% | 7.1 |
| Gregory CountySouth Dakota · County equivalent · 46053 | 4,037 | -34 | -0.84% | 4.0 |
| Clark CountySouth Dakota · County equivalent · 46025 | 4,031 | +31 | +0.77% | 4.2 |
| Edmunds CountySouth Dakota · County equivalent · 46045 | 4,022 | -9 | -0.22% | 3.6 |
| Corson CountySouth Dakota · County equivalent · 46031 | 3,781 | +4 | +0.11% | 1.5 |
| Lyman CountySouth Dakota · County equivalent · 46085 | 3,694 | +2 | +0.05% | 2.2 |
| Hanson CountySouth Dakota · County equivalent · 46061 | 3,456 | -45 | -1.29% | 8.0 |
| Bennett CountySouth Dakota · County equivalent · 46007 | 3,307 | +1 | +0.03% | 2.8 |
| Hand CountySouth Dakota · County equivalent · 46059 | 3,121 | +3 | +0.10% | 2.2 |
| Stanley CountySouth Dakota · County equivalent · 46117 | 3,018 | +17 | +0.57% | 2.1 |
| Douglas CountySouth Dakota · County equivalent · 46043 | 2,888 | +20 | +0.70% | 6.7 |
| Perkins CountySouth Dakota · County equivalent · 46105 | 2,853 | +20 | +0.71% | 1.0 |
| Aurora CountySouth Dakota · County equivalent · 46003 | 2,801 | +10 | +0.36% | 4.0 |
Use these comparisons consistently
A larger population does not necessarily mean faster growth. Absolute change measures the number of residents gained or lost; percentage change divides that difference by the starting population. The percentage column here covers one July-to-July interval, rather than a decade or a partial calendar year. Percent growth is suppressed where the starting population is zero.
Density divides the unrounded July 1, 2025 population by matching 2025 Gazetteer land area. It is measured in people per square mile and excludes water area. These geographic averages depend on the size and definition of each unit, so a county’s density is not directly comparable to a built-up city neighborhood.
County-equivalent names and units vary by state. Connecticut planning regions are represented in the current series; linking older county series requires a documented relationship. Incorporated places may cross county boundaries and do not form an exhaustive county breakdown.
Exports contain the current page’s visible rows after filtering, with reference date and release metadata. Use whole-dataset downloads for every row or select a compatible comparison to inspect a longer interval. The initial pep-2025-r1 snapshot remains reproducible when future releases are added.