South Dakota Citizen Voting-age Population By County in 2020 (ACS-5Yrs)
Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2020, the citizen voting-age population for South Dakota was 644,865 and represented 73.34% of the total South Dakota population.
Among all South Dakota counties, Minnehaha had the highest citizen voting-age population (135.61K), followed by Pennington (85.31K), and Lincoln (41.05K).
In terms of percentages, Custer had the highest percentage of its population being citizens of voting-age (84.70%), followed by Fall River (81.99%), and Sully (80.86%).
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 | 135610 | 70.75 |
| Pennington | 85305 | 75.82 |
| Lincoln | 41050 | 69.71 |
| Brown | 28670 | 73.53 |
| Brookings | 26375 | 75.11 |
| Meade | 21530 | 76.48 |
| Codington | 20885 | 74.23 |
| Lawrence | 20775 | 80.51 |
| Yankton | 17635 | 77.53 |
| Davison | 15060 | 75.72 |
| Hughes | 13260 | 75.51 |
| Beadle | 12005 | 65.46 |
| Union | 11615 | 74.17 |
| Clay | 11275 | 80.11 |
| Lake | 9940 | 77.99 |
| Oglala Lakota | 9010 | 63.12 |
| Butte | 7740 | 75.18 |
| Custer | 7475 | 84.70 |
| Roberts | 7475 | 72.50 |
| Charles Mix | 6530 | 70.03 |
| Turner | 6215 | 74.66 |
| Todd | 5955 | 57.76 |
| Bon Homme | 5560 | 80.41 |
| Fall River | 5510 | 81.99 |
| Hutchinson | 5430 | 74.28 |
| Grant | 5290 | 74.25 |
| Spink | 4845 | 75.23 |
| Moody | 4805 | 73.81 |
| Day | 4255 | 78.07 |
| Walworth | 4170 | 76.80 |
| Tripp | 4065 | 74.59 |
| Hamlin | 4010 | 65.68 |
| McCook | 3960 | 71.42 |
| Brule | 3885 | 74.21 |
| Kingsbury | 3810 | 77.20 |
| Dewey | 3630 | 62.16 |
| Marshall | 3600 | 73.77 |
| Deuel | 3240 | 75.17 |
| Gregory | 3190 | 76.04 |
| Edmunds | 2870 | 74.07 |
| Lyman | 2725 | 71.15 |
| Clark | 2630 | 70.79 |
| Corson | 2600 | 63.34 |
| Stanley | 2440 | 79.74 |
| Hand | 2385 | 77.81 |
| Hanson | 2375 | 69.34 |
| Perkins | 2315 | 77.30 |
| Jackson | 2230 | 67.68 |
| Douglas | 2200 | 75.47 |
| Bennett | 2190 | 63.85 |
| Ziebach | 1965 | 71.07 |
| Aurora | 1910 | 69.33 |
| Faulk | 1825 | 78.83 |
| McPherson | 1805 | 77.97 |
| Sanborn | 1785 | 75.32 |
| Potter | 1775 | 76.84 |
| Miner | 1675 | 75.62 |
| Jerauld | 1550 | 77.11 |
| Mellette | 1475 | 71.43 |
| Haakon | 1380 | 71.32 |
| Buffalo | 1235 | 61.60 |
| Campbell | 1155 | 79.11 |
| Hyde | 1150 | 79.58 |
| Sully | 1035 | 80.86 |
| Harding | 920 | 77.97 |
| Jones | 650 | 74.29 |
