

A focus on "some college, no degree" can improve state college attainment rates. More: South Dakota PDF
| County | Percent w/college degree | Number w/college degree | Total population (ages 25-34) | < 9th grade | 9th-12th grade, no diploma | High school grad/GED | Some college, no degree | Associate's degree | Bachelor's degree | Graduate degree |
| TOTAL | 38.4% | 34,599 | 90,196 | 2,291 | 5,882 | 23,761 | 23,663 | 9,900 | 20,536 | 4,163 |
| Clay | 60.4% | 1,047 | 1,734 | 57 | 8 | 157 | 465 | 80 | 754 | 213 |
| Hughes | 52.8% | 1,027 | 1,945 | 38 | 80 | 402 | 398 | 192 | 668 | 167 |
| Lincoln | 51.5% | 1,756 | 3,407 | 30 | 101 | 717 | 803 | 533 | 1,056 | 167 |
| Brookings | 49.6% | 1,631 | 3,287 | 38 | 51 | 672 | 895 | 354 | 1,039 | 238 |
| Jones | 49.6% | 57 | 115 | 0 | 0 | 27 | 31 | 29 | 24 | 4 |
| Hyde | 46.9% | 67 | 143 | 2 | 4 | 34 | 36 | 24 | 39 | 4 |
| Union | 46.5% | 735 | 1,580 | 14 | 72 | 348 | 411 | 167 | 437 | 131 |
| Kingsbury | 46.1% | 212 | 460 | 0 | 28 | 129 | 91 | 80 | 121 | 11 |
| Sully | 43.5% | 70 | 161 | 3 | 4 | 55 | 29 | 27 | 37 | 6 |
| Douglas | 43.3% | 126 | 291 | 43 | 12 | 57 | 53 | 45 | 58 | 23 |
| Brule | 43.1% | 233 | 540 | 42 | 19 | 149 | 97 | 65 | 155 | 13 |
| Davison | 43.1% | 893 | 2,071 | 19 | 127 | 619 | 413 | 323 | 464 | 106 |
| Brown | 43.1% | 1,826 | 4,238 | 87 | 175 | 1,087 | 1,063 | 449 | 1,184 | 193 |
| Harding | 43.0% | 52 | 121 | 0 | 2 | 31 | 36 | 8 | 44 | 0 |
| Turner | 42.9% | 367 | 855 | 11 | 29 | 196 | 252 | 109 | 211 | 47 |
| Stanley | 41.4% | 135 | 326 | 4 | 10 | 81 | 96 | 50 | 71 | 14 |
| Minnehaha | 41.4% | 9,413 | 22,756 | 583 | 1,590 | 5,437 | 5,733 | 2,416 | 5,778 | 1,219 |
| Lake | 40.3% | 430 | 1,067 | 37 | 23 | 288 | 289 | 113 | 273 | 44 |
| Beadle | 39.7% | 615 | 1,548 | 53 | 82 | 385 | 413 | 206 | 335 | 74 |
| Marshall | 38.6% | 167 | 433 | 27 | 29 | 108 | 102 | 61 | 95 | 11 |
| Aurora | 38.5% | 100 | 260 | 15 | 17 | 77 | 51 | 50 | 42 | 8 |
| Walworth | 38.3% | 192 | 501 | 9 | 11 | 227 | 62 | 67 | 110 | 15 |
| Grant | 38.2% | 276 | 722 | 12 | 28 | 266 | 140 | 98 | 133 | 45 |
| Sanborn | 37.8% | 88 | 233 | 10 | 10 | 69 | 56 | 32 | 53 | 3 |
| Day | 37.6% | 196 | 521 | 0 | 28 | 156 | 141 | 50 | 125 | 21 |
| Yankton | 37.5% | 1,013 | 2,703 | 47 | 224 | 857 | 562 | 260 | 637 | 116 |
| Miner | 37.2% | 92 | 247 | 18 | 16 | 74 | 47 | 24 | 60 | 8 |
| Hutchinson | 36.6% | 269 | 735 | 60 | 31 | 188 | 187 | 96 | 133 | 40 |
| Edmunds | 36.6% | 135 | 369 | 48 | 20 | 75 | 91 | 44 | 72 | 19 |
| McCook | 36.5% | 229 | 628 | 9 | 28 | 189 | 173 | 88 | 120 | 21 |
| Pennington | 36.1% | 4,022 | 11,127 | 132 | 799 | 2,850 | 3,324 | 1,227 | 2,237 | 558 |
| Hand | 35.9% | 99 | 276 | 6 | 17 | 86 | 68 | 32 | 67 | 0 |
| Perkins | 35.8% | 102 | 285 | 9 | 9 | 86 | 79 | 30 | 62 | 10 |
| Codington | 35.6% | 1,150 | 3,230 | 7 | 142 | 990 | 941 | 417 | 647 | 86 |
| Bon Homme | 34.9% | 271 | 776 | 20 | 57 | 248 | 180 | 94 | 144 | 33 |
| Campbell | 34.8% | 49 | 141 | 2 | 3 | 26 | 61 | 23 | 25 | 1 |
| Hamlin | 34.8% | 188 | 541 | 10 | 14 | 209 | 120 | 69 | 97 | 22 |
| Moody | 34.4% | 231 | 672 | 6 | 37 | 193 | 205 | 76 | 127 | 28 |
| Jerauld | 34.0% | 65 | 191 | 27 | 3 | 66 | 30 | 30 | 29 | 6 |
| Potter | 34.0% | 65 | 191 | 0 | 10 | 72 | 44 | 24 | 36 | 5 |
| Custer | 34.0% | 219 | 644 | 1 | 33 | 206 | 185 | 56 | 158 | 5 |
| Haakon | 33.9% | 58 | 171 | 3 | 2 | 47 | 61 | 14 | 39 | 5 |
| Lawrence | 33.8% | 762 | 2,253 | 57 | 108 | 556 | 770 | 160 | 511 | 91 |
| Hanson | 33.7% | 118 | 350 | 60 | 17 | 79 | 76 | 36 | 73 | 9 |
| Deuel | 31.6% | 143 | 453 | 4 | 26 | 177 | 103 | 56 | 59 | 28 |
| Charles Mix | 31.0% | 282 | 911 | 49 | 124 | 273 | 183 | 134 | 139 | 9 |
| Meade | 29.7% | 957 | 3,225 | 12 | 167 | 896 | 1,193 | 378 | 497 | 82 |
| Spink | 29.3% | 223 | 761 | 130 | 40 | 194 | 174 | 92 | 112 | 19 |
| Faulk | 29.0% | 65 | 224 | 54 | 3 | 45 | 57 | 30 | 34 | 1 |
| McPherson | 28.9% | 69 | 239 | 32 | 22 | 60 | 56 | 24 | 38 | 7 |
| Jackson | 28.2% | 91 | 323 | 8 | 22 | 93 | 109 | 40 | 46 | 5 |
| Gregory | 27.4% | 95 | 347 | 8 | 22 | 111 | 111 | 25 | 56 | 14 |
| Tripp | 26.9% | 153 | 569 | 17 | 46 | 190 | 163 | 55 | 90 | 8 |
| Fall River | 26.5% | 133 | 502 | 4 | 10 | 224 | 131 | 20 | 86 | 27 |
| Butte | 26.2% | 235 | 896 | 23 | 50 | 356 | 232 | 94 | 113 | 28 |
| Roberts | 24.1% | 239 | 991 | 41 | 141 | 339 | 231 | 121 | 113 | 5 |
| Clark | 22.8% | 76 | 334 | 53 | 7 | 114 | 84 | 26 | 38 | 12 |
| Mellette | 20.8% | 49 | 236 | 12 | 32 | 72 | 71 | 10 | 35 | 4 |
| Ziebach | 20.4% | 53 | 260 | 3 | 50 | 110 | 44 | 36 | 17 | 0 |
| Bennett | 20.2% | 85 | 421 | 30 | 96 | 116 | 94 | 38 | 39 | 8 |
| Lyman | 19.9% | 82 | 413 | 7 | 52 | 156 | 116 | 10 | 59 | 13 |
| Corson | 19.6% | 87 | 444 | 13 | 44 | 181 | 119 | 30 | 55 | 2 |
| Dewey | 19.0% | 132 | 693 | 4 | 138 | 228 | 191 | 54 | 53 | 25 |
| Shannon | 18.0% | 314 | 1,742 | 92 | 348 | 479 | 509 | 133 | 170 | 11 |
| Todd | 14.5% | 165 | 1,137 | 24 | 256 | 398 | 294 | 51 | 101 | 13 |
| Buffalo | 10.0% | 23 | 230 | 15 | 76 | 78 | 38 | 15 | 6 | 2 |