Ranking of Wisconsin Counties By Population Aged 25 years and above with an Educational attainment of Less than High School Diploma in 2021 (ACS-5Yrs)
Updated on September 3, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, the population of Wisconsin (aged 25 years and above) who had an educational attainment of Less than High School Diploma was 285,275. Among all Wisconsin counties, Milwaukee County had the highest population (aged 25 years and above) with an educational attainment of Less than High School Diploma (67,517), followed by Dane County (14,439), and Brown County (13,669).
The chart below shows the top 10 Wisconsin counties, and the table below shows the ranking of all Wisconsin counties.
You can see similar information for other educational attainments.
You can also see similar information for other states and for the United States.
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Related Topics: Wisconsin ACS-5Yrs Estimates, 2021 Topic List.
Data Source: US Census - ACS 5-Year Estimates.
Ranking of Wisconsin Counties By Population (Aged 25yrs+) with an Educational Attainment of Less than High School Diploma in 2021
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| Rank | County | Number of People |
|---|---|---|
| 1 | Milwaukee County | 67517 |
| 2 | Dane County | 14439 |
| 3 | Brown County | 13669 |
| 4 | Racine County | 11194 |
| 5 | Waukesha County | 10328 |
| 6 | Kenosha County | 9879 |
| 7 | Rock County | 8897 |
| 8 | Winnebago County | 7388 |
| 9 | Outagamie County | 7344 |
| 10 | Marathon County | 6835 |
| 11 | Walworth County | 5927 |
| 12 | Fond du Lac County | 5647 |
| 13 | Dodge County | 5175 |
| 14 | Sheboygan County | 4960 |
| 15 | Washington County | 4810 |
| 16 | Jefferson County | 4457 |
| 17 | Manitowoc County | 4301 |
| 18 | Sauk County | 3757 |
| 19 | Clark County | 3700 |
| 20 | Wood County | 3515 |
| 21 | Chippewa County | 3401 |
| 22 | La Crosse County | 3373 |
| 23 | Barron County | 3133 |
| 24 | Eau Claire County | 2997 |
| 25 | Monroe County | 2881 |
| 26 | Marinette County | 2663 |
| 27 | Waupaca County | 2626 |
| 28 | Columbia County | 2499 |
| 29 | Grant County | 2497 |
| 30 | Portage County | 2377 |
| 31 | St. Croix County | 2318 |
| 32 | Oconto County | 2228 |
| 33 | Shawano County | 2197 |
| 34 | Waushara County | 2048 |
| 35 | Polk County | 2004 |
| 36 | Adams County | 1997 |
| 37 | Vernon County | 1971 |
| 38 | Green County | 1889 |
| 39 | Juneau County | 1888 |
| 40 | Calumet County | 1876 |
| 41 | Douglas County | 1819 |
| 42 | Trempealeau County | 1712 |
| 43 | Ozaukee County | 1678 |
| 44 | Dunn County | 1665 |
| 45 | Lincoln County | 1561 |
| 46 | Taylor County | 1534 |
| 47 | Oneida County | 1529 |
| 48 | Langlade County | 1417 |
| 49 | Jackson County | 1411 |
| 50 | Pierce County | 1302 |
| 51 | Green Lake County | 1256 |
| 52 | Rusk County | 1106 |
| 53 | Richland County | 1083 |
| 54 | Door County | 1040 |
| 55 | Marquette County | 981 |
| 56 | Lafayette County | 960 |
| 57 | Burnett County | 922 |
| 58 | Crawford County | 900 |
| 59 | Washburn County | 894 |
| 60 | Kewaunee County | 888 |
| 61 | Sawyer County | 875 |
| 62 | Vilas County | 870 |
| 63 | Buffalo County | 820 |
| 64 | Price County | 804 |
| 65 | Iowa County | 696 |
| 66 | Ashland County | 685 |
| 67 | Forest County | 665 |
| 68 | Bayfield County | 563 |
| 69 | Pepin County | 404 |
| 70 | Florence County | 298 |
| 71 | Iron County | 208 |
| 72 | Menominee County | 127 |