South Dakota Citizen Voting-age Population By County in 2021 (ACS-5Yrs)
Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2021, the citizen voting-age population for South Dakota was 645,570 and represented 73.21% of the total South Dakota population.
Among all South Dakota counties, Minnehaha had the highest citizen voting-age population (138.48K), followed by Pennington (82.26K), and Lincoln (44.25K).
In terms of percentages, Custer had the highest percentage of its population being citizens of voting-age (83.07%), followed by Fall River (81.45%), and Lawrence (81.10%).
The chart and table below shows the citizen voting-age population of each county and the percentage of each county's population that were citizens of voting-age.
You can see similar information for other states and by state for the United States.
| County | Citizen Voting-age Population | % of County Population |
|---|---|---|
| Minnehaha | 138480 | 71.06 |
| Pennington | 82260 | 75.67 |
| Lincoln | 44250 | 69.98 |
| Brown | 27990 | 72.76 |
| Brookings | 25900 | 75.48 |
| Meade | 22510 | 76.15 |
| Codington | 21060 | 74.44 |
| Lawrence | 20830 | 81.10 |
| Yankton | 17890 | 77.06 |
| Davison | 15035 | 75.38 |
| Hughes | 13375 | 75.01 |
| Beadle | 12565 | 66.27 |
| Union | 12155 | 74.00 |
| Clay | 11695 | 78.94 |
| Lake | 8955 | 78.83 |
| Oglala Lakota | 8705 | 62.92 |
| Butte | 7700 | 75.75 |
| Roberts | 7350 | 71.67 |
| Custer | 6945 | 83.07 |
| Charles Mix | 6480 | 69.34 |
| Turner | 6405 | 74.30 |
| Fall River | 5685 | 81.45 |
| Grant | 5635 | 74.64 |
| Bon Homme | 5620 | 80.06 |
| Todd | 5420 | 57.45 |
| Hutchinson | 5415 | 73.08 |
| Spink | 4860 | 75.82 |
| Moody | 4615 | 72.85 |
| Tripp | 4225 | 75.25 |
| Day | 4215 | 76.85 |
| Walworth | 4100 | 76.56 |
| McCook | 4035 | 71.10 |
| Hamlin | 3960 | 64.65 |
| Kingsbury | 3895 | 75.93 |
| Brule | 3815 | 72.74 |
| Dewey | 3315 | 62.02 |
| Deuel | 3205 | 74.80 |
| Marshall | 3205 | 73.26 |
| Gregory | 3035 | 75.78 |
| Edmunds | 2980 | 74.41 |
| Clark | 2635 | 69.53 |
| Lyman | 2615 | 69.83 |
| Corson | 2480 | 62.55 |
| Hanson | 2385 | 69.53 |
| Hand | 2330 | 76.14 |
| Stanley | 2305 | 77.74 |
| Perkins | 2300 | 77.31 |
| Douglas | 2080 | 73.24 |
| Potter | 2005 | 76.67 |
| Bennett | 2000 | 58.65 |
| Jackson | 1985 | 69.16 |
| Aurora | 1830 | 69.06 |
| McPherson | 1780 | 79.29 |
| Ziebach | 1775 | 71.57 |
| Miner | 1770 | 77.12 |
| Sanborn | 1725 | 72.79 |
| Faulk | 1600 | 74.25 |
| Jerauld | 1395 | 77.07 |
| Haakon | 1385 | 74.06 |
| Mellette | 1345 | 70.24 |
| Buffalo | 1220 | 61.77 |
| Campbell | 1155 | 74.52 |
| Hyde | 1080 | 78.26 |
| Sully | 1030 | 80.47 |
| Harding | 925 | 78.39 |
| Jones | 680 | 74.32 |
