Statewide Report by County - June 1, 2021 County Libertarian Republican Democratic NPA/IND OTH Inactive Total Active Aurora 2 870 654 292 2 91 1,820 Beadle 21 4,581 3,056 2,358 42 395 10,058 Bennett 3 711 769 372 2 161 1,857 Bon Homme 12 2,210 1,059 672 2 243 3,955 Brookings 92 8,560 5,366 5,911 42 1,116 19,971 Brown 86 11,177 7,933 4,804 50 2,452 24,050 Brule 8 1,610 1,061 594 4 27 3,277 Buffalo 1 164 602 155 2 86 924 Butte 54 4,211 915 1,387 13 1,157 6,580 Campbell 917 119 96 80 1,132 Charles Mix 6 2,516 2,065 847 4 400 5,438 Clark 4 1,476 644 382 14 138 2,520 Clay 37 2,663 3,017 2,371 17 709 8,105 Codington 49 9,092 4,453 4,009 31 1,131 17,634 Corson 8 702 1,157 523 5 197 2,395 Custer 28 4,311 1,158 1,626 32 948 7,155 Davison 27 6,014 3,117 2,758 30 1,203 11,946 Day 8 1,669 1,543 681 12 187 3,913 Deuel 9 1,536 756 699 8 147 3,008 Dewey 3 759 2,010 672 8 182 3,452 Douglas 1 1,649 269 209 51 2,128 Edmunds 6 1,605 669 415 4 144 2,699 Fall River 32 3,305 940 1,277 37 616 5,591 Faulk 1,055 231 231 2 60 1,519 Grant 10 2,505 1,278 994 12 284 4,799 Gregory 5 1,716 792 385 82 2,898 Haakon 3 1,114 149 131 1 64 1,398 Hamlin 6 2,660 652 580 2 204 3,900 Hand 5 1,516 523 245 4 138 2,293 Hanson 6 1,839 754 836 9 631 3,444 Harding 4 810 86 94 57 994 Hughes 53 7,214 2,400 2,167 24 482 11,858 Hutchinson 7 3,263 854 750 9 4,883 Hyde 667 182 114 3 13 966 Jackson 8 865 669 319 9 62 1,870 Jerauld 6 642 404 187 2 56 1,241 Jones 1 532 84 86 1 23 704 Kingsbury 7 2,130 872 614 3 208 3,626 Lake 32 4,292 2,370 1,894 8 1,338 8,596 Lawrence 128 10,047 3,806 4,523 44 2,277 18,548 Lincoln 178 21,052 9,794 10,902 65 3,801 41,991 Lyman 7 1,139 773 318 1 59 2,238 Marshall 8 1,186 1,096 542 4 210 2,836 McCook 12 2,014 964 787 8 157 3,785 McPherson 8 1,294 243 235 2 153 1,782 Meade 116 11,275 3,159 4,314 38 760 18,902 Mellette 3 507 452 190 1 38 1,153 Miner 4 688 539 331 3 69 1,565 Minnehaha 615 52,226 37,530 36,575 347 16,348 127,293 Moody 11 1,650 1,499 1,016 4 340 4,180 Oglala Lakota 19 525 5,467 1,959 52 858 8,022 Pennington 569 40,401 18,082 23,040 260 8,439 82,352 Perkins 5 1,469 326 341 6 127 2,147 Potter 1 1,314 248 167 4 144 1,734 Roberts 11 2,089 2,914 1,394 26 246 6,434 Sanborn 5 895 418 250 4 80 1,572 Spink 6 2,279 1,269 642 9 125 4,205 Stanley 3 1,430 402 295 11 168 2,141 Sully 2 780 196 136 3 68 1,117 Todd 6 700 2,958 974 9 833 4,647 Tripp 8 2,321 770 572 11 370 3,682 Turner 12 3,276 1,321 1,189 15 173 5,813 Union 35 6,006 2,708 3,696 17 1,548 12,462 Walworth 9 2,535 777 522 8 247 3,851 Yankton 65 6,706 3,940 3,827 18 1,307 14,556 Ziebach 7 405 847 376 3 110 1,638 Total 2,503 281,337 158,130 141,850 1,423 54,618 585,243 Independent (IND) / No Party Affiliation (NPA) – these two categories are one in the same. When a voter writes Independent, I, Ind, no party affiliation, NPA, no party, no choice, none, non-partisan, line crossed off or the field is blank in the "Choice of Party" field on the voter registration form. (South Dakota does not have an Independent party) OTHER – This category is for voters who write any other political party on their voter registration form that is not currently a recognized political party in South Dakota.

NOTE - The South Dakota Democratic Party has opened their primary election up for all voters registered as independent/no party affiliation to vote in their primary. Voters registered in the “other” category are not allowed to vote in the SD Democratic Party primary.

The Libertarian Party became a recognized party on June 17, 2016. The Constitution Party became a recognized party on March 31, 2016. By statutes SDCL 12-5-1.5 and 12-1-3, the Constitution Party lost party status on November 14, 2018.