

A focus on "some college, no degree" can improve state college attainment rates. More: Colorado 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 | 42.4% | 281,582 | 664,455 | 30,337 | 57,515 | 134,496 | 160,525 | 50,279 | 178,908 | 52,395 |
| Douglas | 63.5% | 18,453 | 29,076 | 71 | 504 | 3,119 | 6,929 | 1,787 | 13,094 | 3,572 |
| Boulder | 63.4% | 30,085 | 47,458 | 1,548 | 2,242 | 5,276 | 8,307 | 2,610 | 19,616 | 7,859 |
| Pitkin | 62.1% | 1,795 | 2,890 | 64 | 77 | 308 | 646 | 177 | 1,427 | 191 |
| San Miguel | 61.1% | 937 | 1,533 | 40 | 77 | 142 | 337 | 86 | 776 | 75 |
| Routt | 58.0% | 1,989 | 3,430 | 26 | 110 | 398 | 907 | 344 | 1,362 | 283 |
| Mineral | 56.0% | 42 | 75 | 0 | 0 | 11 | 22 | 5 | 37 | 0 |
| Summit | 54.6% | 3,314 | 6,070 | 209 | 328 | 1,135 | 1,084 | 487 | 2,459 | 368 |
| San Juan | 54.4% | 37 | 68 | 2 | 7 | 10 | 12 | 0 | 35 | 2 |
| Larimer | 51.7% | 18,641 | 36,052 | 541 | 1,585 | 5,720 | 9,565 | 3,164 | 11,776 | 3,701 |
| Gunnison | 51.6% | 1,324 | 2,566 | 77 | 93 | 314 | 758 | 97 | 1,062 | 165 |
| Eagle | 49.4% | 4,892 | 9,894 | 963 | 742 | 1,712 | 1,585 | 693 | 3,640 | 559 |
| Gilpin | 47.3% | 387 | 819 | 9 | 27 | 195 | 201 | 97 | 226 | 64 |
| Grand | 47.2% | 922 | 1,955 | 15 | 106 | 448 | 464 | 160 | 643 | 119 |
| Jefferson | 46.0% | 32,858 | 71,356 | 1,077 | 4,668 | 13,986 | 18,767 | 6,067 | 20,986 | 5,805 |
| Denver | 45.3% | 51,454 | 113,480 | 9,518 | 13,456 | 18,131 | 20,921 | 5,675 | 33,750 | 12,029 |
| Clear Creek | 45.3% | 503 | 1,110 | 9 | 71 | 250 | 277 | 78 | 362 | 63 |
| Ouray | 44.1% | 162 | 367 | 3 | 8 | 66 | 128 | 14 | 111 | 37 |
| Arapahoe | 43.6% | 32,539 | 74,672 | 2,493 | 5,719 | 14,228 | 19,693 | 6,075 | 21,089 | 5,375 |
| Teller | 42.0% | 948 | 2,257 | 45 | 130 | 499 | 635 | 152 | 637 | 159 |
| Hinsdale | 41.6% | 32 | 77 | 3 | 4 | 15 | 23 | 13 | 19 | 0 |
| La Plata | 41.5% | 2,354 | 5,672 | 81 | 249 | 1,265 | 1,723 | 336 | 1,627 | 391 |
| Park | 40.6% | 676 | 1,664 | 10 | 125 | 366 | 487 | 164 | 441 | 71 |
| Jackson | 40.4% | 63 | 156 | 7 | 10 | 35 | 41 | 16 | 35 | 12 |
| Kiowa | 38.8% | 57 | 147 | 7 | 7 | 30 | 46 | 14 | 25 | 18 |
| El Paso | 38.6% | 29,918 | 77,421 | 1,376 | 4,523 | 17,816 | 23,788 | 7,291 | 17,460 | 5,167 |
| Elbert | 38.4% | 779 | 2,029 | 16 | 83 | 466 | 685 | 254 | 422 | 103 |
| Rio Blanco | 38.0% | 261 | 686 | 27 | 47 | 152 | 199 | 96 | 125 | 40 |
| Washington | 34.8% | 169 | 486 | 16 | 26 | 111 | 164 | 65 | 93 | 11 |
| Chaffee | 32.8% | 680 | 2,071 | 8 | 203 | 655 | 525 | 197 | 337 | 146 |
| Las Animas | 32.8% | 450 | 1,371 | 22 | 113 | 401 | 385 | 207 | 161 | 82 |
| Baca | 32.4% | 129 | 398 | 12 | 45 | 103 | 109 | 46 | 74 | 9 |
| Yuma | 32.0% | 349 | 1,091 | 103 | 166 | 229 | 244 | 128 | 166 | 55 |
| Weld | 31.3% | 8,086 | 25,806 | 2,291 | 3,167 | 5,951 | 6,311 | 2,139 | 4,732 | 1,215 |
| Phillips | 30.0% | 136 | 453 | 24 | 28 | 129 | 136 | 37 | 68 | 31 |
| Kit Carson | 29.0% | 264 | 909 | 78 | 117 | 238 | 212 | 80 | 124 | 60 |
| Mesa | 28.3% | 3,715 | 13,149 | 468 | 1,443 | 4,157 | 3,366 | 1,114 | 2,219 | 382 |
| Cheyenne | 28.2% | 61 | 216 | 21 | 23 | 41 | 70 | 15 | 36 | 10 |
| Adams | 28.1% | 17,558 | 62,512 | 4,961 | 8,946 | 16,558 | 14,489 | 5,065 | 10,124 | 2,369 |
| Otero | 27.5% | 607 | 2,209 | 97 | 270 | 713 | 522 | 241 | 285 | 81 |
| Crowley | 27.0% | 256 | 948 | 15 | 173 | 292 | 212 | 79 | 45 | 132 |
| Pueblo | 27.0% | 4,718 | 17,494 | 469 | 1,950 | 5,222 | 5,135 | 1,782 | 2,357 | 579 |
| Garfield | 27.0% | 1,753 | 6,500 | 544 | 794 | 1,774 | 1,635 | 509 | 1,047 | 197 |
| Logan | 26.4% | 653 | 2,476 | 124 | 292 | 716 | 691 | 422 | 225 | 6 |
| Lake | 26.1% | 363 | 1,392 | 146 | 180 | 355 | 348 | 141 | 191 | 31 |
| Alamosa | 25.9% | 485 | 1,874 | 56 | 260 | 522 | 551 | 92 | 328 | 65 |
| Rio Grande | 24.8% | 323 | 1,304 | 87 | 96 | 391 | 407 | 92 | 190 | 41 |
| Dolores | 23.2% | 47 | 203 | 0 | 10 | 74 | 72 | 12 | 33 | 2 |
| Archuleta | 21.8% | 209 | 959 | 24 | 104 | 328 | 294 | 38 | 155 | 16 |
| Montezuma | 21.8% | 592 | 2,719 | 77 | 408 | 971 | 671 | 135 | 391 | 66 |
| Prowers | 21.4% | 381 | 1,782 | 276 | 264 | 509 | 352 | 181 | 146 | 54 |
| Delta | 21.3% | 557 | 2,614 | 219 | 320 | 958 | 560 | 187 | 312 | 58 |
| Lincoln | 20.9% | 180 | 863 | 44 | 130 | 251 | 258 | 83 | 72 | 25 |
| Morgan | 20.0% | 723 | 3,616 | 646 | 628 | 884 | 735 | 302 | 329 | 92 |
| Conejos | 19.9% | 160 | 803 | 38 | 105 | 307 | 193 | 44 | 106 | 10 |
| Montrose | 19.9% | 714 | 3,595 | 383 | 410 | 1,250 | 838 | 203 | 447 | 64 |
| Huerfano | 18.7% | 168 | 900 | 74 | 147 | 326 | 185 | 57 | 97 | 14 |
| Costilla | 18.3% | 60 | 327 | 20 | 52 | 106 | 89 | 12 | 46 | 2 |
| Saguache | 17.9% | 109 | 610 | 94 | 130 | 154 | 123 | 47 | 44 | 18 |
| Moffat | 17.2% | 281 | 1,633 | 123 | 227 | 579 | 423 | 91 | 157 | 33 |
| Bent | 16.7% | 129 | 774 | 30 | 146 | 310 | 159 | 73 | 46 | 10 |
| Sedgwick | 16.3% | 46 | 282 | 12 | 43 | 103 | 78 | 28 | 18 | 0 |
| Fremont | 14.7% | 1,015 | 6,890 | 496 | 1,063 | 2,650 | 1,666 | 380 | 447 | 188 |
| Custer | 13.8% | 34 | 246 | 2 | 38 | 85 | 87 | 3 | 18 | 13 |