

A focus on "some college, no degree" can improve state college attainment rates. More: Washington 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 | 38.1% | 319,779 | 839,617 | 32,376 | 73,495 | 194,452 | 219,515 | 77,089 | 185,975 | 56,715 |
| Whitman | 67.8% | 3,638 | 5,367 | 27 | 144 | 509 | 1,049 | 655 | 1,996 | 987 |
| King | 53.2% | 156,670 | 294,255 | 7,489 | 17,142 | 47,959 | 64,995 | 24,544 | 99,651 | 32,475 |
| Garfield | 46.0% | 86 | 187 | 4 | 9 | 35 | 53 | 43 | 33 | 10 |
| Kittitas | 40.6% | 1,555 | 3,833 | 120 | 287 | 943 | 928 | 424 | 904 | 227 |
| Spokane | 37.2% | 20,322 | 54,612 | 743 | 3,915 | 13,028 | 16,604 | 7,097 | 10,466 | 2,759 |
| Whatcom | 36.7% | 7,854 | 21,418 | 575 | 1,676 | 5,593 | 5,720 | 2,387 | 4,578 | 889 |
| Thurston | 36.6% | 9,841 | 26,923 | 465 | 2,056 | 6,401 | 8,160 | 2,406 | 5,518 | 1,917 |
| San Juan | 35.2% | 359 | 1,020 | 11 | 75 | 277 | 298 | 59 | 239 | 61 |
| Snohomish | 34.0% | 30,088 | 88,554 | 1,896 | 7,644 | 22,406 | 26,520 | 8,779 | 17,493 | 3,816 |
| Island | 33.7% | 3,044 | 9,034 | 45 | 517 | 2,425 | 3,003 | 866 | 1,889 | 289 |
| Benton | 33.6% | 5,923 | 17,630 | 1,012 | 2,007 | 4,309 | 4,379 | 2,148 | 2,851 | 924 |
| Lincoln | 33.2% | 293 | 883 | 16 | 63 | 271 | 240 | 101 | 146 | 46 |
| Jefferson | 30.6% | 594 | 1,941 | 36 | 178 | 640 | 493 | 198 | 290 | 106 |
| Clark | 30.1% | 14,733 | 48,954 | 1,262 | 4,918 | 13,148 | 14,893 | 4,472 | 8,108 | 2,153 |
| Walla Walla | 29.6% | 2,012 | 6,803 | 672 | 946 | 1,727 | 1,446 | 824 | 909 | 279 |
| Kitsap | 29.4% | 8,751 | 29,791 | 512 | 1,874 | 8,570 | 10,084 | 2,856 | 4,402 | 1,493 |
| Pierce | 28.0% | 28,199 | 100,543 | 2,062 | 9,826 | 29,411 | 31,045 | 9,384 | 14,535 | 4,280 |
| Chelan | 26.8% | 2,083 | 7,779 | 1,227 | 1,012 | 1,782 | 1,675 | 594 | 1,236 | 253 |
| Columbia | 26.2% | 97 | 370 | 7 | 49 | 114 | 103 | 31 | 33 | 33 |
| Skagit | 25.8% | 3,147 | 12,200 | 900 | 1,774 | 3,420 | 2,959 | 1,197 | 1,628 | 322 |
| Wahkiakum | 25.3% | 79 | 312 | 0 | 48 | 93 | 92 | 37 | 37 | 5 |
| Skamania | 24.8% | 262 | 1,055 | 34 | 115 | 320 | 324 | 58 | 142 | 62 |
| Stevens | 24.7% | 921 | 3,735 | 48 | 378 | 1,406 | 982 | 399 | 393 | 129 |
| Asotin | 24.4% | 558 | 2,286 | 18 | 208 | 784 | 718 | 191 | 269 | 98 |
| Cowlitz | 22.5% | 2,573 | 11,428 | 233 | 1,574 | 3,610 | 3,438 | 1,141 | 1,092 | 340 |
| Pacific | 21.8% | 393 | 1,805 | 140 | 224 | 501 | 547 | 149 | 183 | 61 |
| Douglas | 21.4% | 835 | 3,911 | 600 | 505 | 1,042 | 929 | 230 | 437 | 168 |
| Klickitat | 21.1% | 426 | 2,017 | 152 | 267 | 668 | 504 | 115 | 242 | 69 |
| Grays Harbor | 19.6% | 1,481 | 7,558 | 470 | 998 | 2,640 | 1,969 | 751 | 519 | 211 |
| Clallam | 19.3% | 1,146 | 5,929 | 272 | 1,010 | 1,791 | 1,710 | 530 | 396 | 220 |
| Lewis | 19.1% | 1,392 | 7,288 | 347 | 1,148 | 2,493 | 1,908 | 693 | 471 | 228 |
| Grant | 18.7% | 1,794 | 9,581 | 2,002 | 1,551 | 2,375 | 1,859 | 689 | 758 | 347 |
| Yakima | 17.9% | 5,430 | 30,273 | 5,798 | 5,555 | 8,080 | 5,410 | 1,720 | 2,760 | 950 |
| Pend Oreille | 17.3% | 165 | 952 | 13 | 207 | 336 | 231 | 106 | 45 | 14 |
| Okanogan | 16.5% | 726 | 4,407 | 537 | 772 | 1,392 | 980 | 283 | 297 | 146 |
| Adams | 16.3% | 341 | 2,097 | 634 | 261 | 491 | 370 | 113 | 157 | 71 |
| Mason | 15.5% | 835 | 5,375 | 245 | 1,008 | 1,753 | 1,534 | 402 | 322 | 111 |
| Franklin | 15.2% | 1,040 | 6,850 | 1,748 | 1,474 | 1,416 | 1,172 | 374 | 519 | 147 |
| Ferry | 14.1% | 93 | 661 | 4 | 80 | 293 | 191 | 43 | 31 | 19 |