Ranking of Iowa Counties By Non-Hispanic White Alone Population Aged 25 years and above with an Educational attainment of Less than High School Diploma in 2021 (ACS-5Yrs)
Based on the US Census ACS-5Yrs estimates, in 2021, the Iowa Non-Hispanic White Alone population (aged 25 years and above) who had an educational attainment of Less than High School Diploma was 95,708. Among all Iowa counties, Polk County had the highest Non-Hispanic White Alone population (aged 25 years and above) with an educational attainment of Less than High School Diploma (9,250), followed by Linn County (5,251), and Pottawattamie County (4,864).
The chart below shows the top 10 Iowa counties, and the table below shows the ranking of all Iowa counties.
You can see similar information for other educational attainments, and for other races and ethnicities.
You can also see similar information for other states and for the United States.
| Rank | County | Number of People |
|---|---|---|
| 1 | Polk County | 9250 |
| 2 | Linn County | 5251 |
| 3 | Pottawattamie County | 4864 |
| 4 | Scott County | 4242 |
| 5 | Black Hawk County | 4096 |
| 6 | Dubuque County | 3422 |
| 7 | Woodbury County | 2454 |
| 8 | Clinton County | 1996 |
| 9 | Muscatine County | 1739 |
| 10 | Webster County | 1632 |
| 11 | Wapello County | 1594 |
| 12 | Johnson County | 1542 |
| 13 | Des Moines County | 1541 |
| 14 | Cerro Gordo County | 1429 |
| 15 | Lee County | 1306 |
| 16 | Marion County | 1221 |
| 17 | Dallas County | 1180 |
| 18 | Story County | 1175 |
| 18 | Warren County | 1175 |
| 19 | Jasper County | 1166 |
| 20 | Davis County | 1145 |
| 21 | Marshall County | 1116 |
| 22 | Clayton County | 1035 |
| 23 | Boone County | 1009 |
| 24 | Mahaska County | 1007 |
| 25 | Benton County | 964 |
| 26 | Sioux County | 907 |
| 27 | Fayette County | 901 |
| 28 | Jackson County | 884 |
| 29 | Henry County | 877 |
| 30 | Washington County | 875 |
| 31 | Delaware County | 844 |
| 32 | Cass County | 799 |
| 33 | Buchanan County | 777 |
| 34 | Harrison County | 761 |
| 35 | Appanoose County | 749 |
| 36 | O'Brien County | 747 |
| 37 | Jefferson County | 739 |
| 38 | Page County | 737 |
| 39 | Allamakee County | 716 |
| 40 | Hardin County | 677 |
| 41 | Carroll County | 675 |
| 42 | Tama County | 654 |
| 43 | Poweshiek County | 625 |
| 43 | Union County | 625 |
| 44 | Floyd County | 618 |
| 45 | Jones County | 616 |
| 46 | Plymouth County | 600 |
| 47 | Van Buren County | 595 |
| 48 | Clarke County | 578 |
| 49 | Louisa County | 565 |
| 50 | Butler County | 555 |
| 51 | Hancock County | 550 |
| 52 | Montgomery County | 547 |
| 53 | Iowa County | 545 |
| 53 | Kossuth County | 545 |
| 54 | Cedar County | 524 |
| 55 | Bremer County | 521 |
| 56 | Howard County | 509 |
| 57 | Winneshiek County | 499 |
| 58 | Clay County | 489 |
| 59 | Mitchell County | 487 |
| 60 | Crawford County | 483 |
| 61 | Chickasaw County | 481 |
| 62 | Shelby County | 476 |
| 63 | Buena Vista County | 452 |
| 64 | Hamilton County | 447 |
| 65 | Wright County | 446 |
| 66 | Keokuk County | 445 |
| 67 | Decatur County | 440 |
| 67 | Wayne County | 440 |
| 68 | Mills County | 424 |
| 68 | Pocahontas County | 424 |
| 69 | Emmet County | 417 |
| 70 | Monona County | 406 |
| 71 | Dickinson County | 405 |
| 71 | Lyon County | 405 |
| 72 | Lucas County | 398 |
| 73 | Cherokee County | 397 |
| 74 | Sac County | 391 |
| 75 | Guthrie County | 353 |
| 76 | Calhoun County | 352 |
| 77 | Worth County | 342 |
| 78 | Palo Alto County | 340 |
| 79 | Grundy County | 339 |
| 80 | Monroe County | 334 |
| 81 | Greene County | 331 |
| 82 | Audubon County | 314 |
| 83 | Ida County | 304 |
| 84 | Madison County | 292 |
| 85 | Winnebago County | 287 |
| 86 | Humboldt County | 286 |
| 87 | Osceola County | 280 |
| 88 | Franklin County | 261 |
| 89 | Taylor County | 245 |
| 90 | Adair County | 236 |
| 91 | Fremont County | 215 |
| 92 | Ringgold County | 213 |
| 93 | Adams County | 144 |
