Ranking of Alabama 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 Alabama (aged 25 years and above) who had an educational attainment of Less than High School Diploma was 430,047. Among all Alabama counties, Jefferson County had the highest population (aged 25 years and above) with an educational attainment of Less than High School Diploma (41,479), followed by Mobile County (34,027), and Madison County (21,084).
The chart below shows the top 10 Alabama counties, and the table below shows the ranking of all Alabama 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: Alabama ACS-5Yrs Estimates, 2021 Topic List.
Data Source: US Census - ACS 5-Year Estimates.
Ranking of Alabama 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 | Jefferson County | 41479 |
| 2 | Mobile County | 34027 |
| 3 | Madison County | 21084 |
| 4 | Montgomery County | 18715 |
| 5 | Tuscaloosa County | 14563 |
| 6 | Baldwin County | 14555 |
| 7 | Morgan County | 12983 |
| 8 | Calhoun County | 11867 |
| 9 | Marshall County | 10675 |
| 10 | DeKalb County | 10522 |
| 11 | Etowah County | 10014 |
| 12 | Talladega County | 9813 |
| 13 | Shelby County | 9632 |
| 14 | Limestone County | 9573 |
| 15 | Cullman County | 9560 |
| 16 | Lee County | 9095 |
| 17 | Houston County | 9006 |
| 18 | St. Clair County | 8873 |
| 19 | Walker County | 8033 |
| 20 | Elmore County | 7459 |
| 21 | Lauderdale County | 7275 |
| 22 | Blount County | 6650 |
| 23 | Jackson County | 6627 |
| 24 | Russell County | 5881 |
| 25 | Chilton County | 5569 |
| 26 | Tallapoosa County | 5432 |
| 27 | Colbert County | 5333 |
| 28 | Dale County | 5093 |
| 29 | Coffee County | 4934 |
| 30 | Escambia County | 4697 |
| 31 | Franklin County | 4381 |
| 32 | Barbour County | 4378 |
| 33 | Chambers County | 4275 |
| 34 | Autauga County | 4126 |
| 35 | Marion County | 3921 |
| 36 | Covington County | 3915 |
| 37 | Lawrence County | 3912 |
| 38 | Cherokee County | 3720 |
| 39 | Dallas County | 3709 |
| 40 | Winston County | 3520 |
| 41 | Geneva County | 3294 |
| 42 | Bibb County | 3125 |
| 43 | Randolph County | 3039 |
| 44 | Clarke County | 2892 |
| 45 | Pike County | 2465 |
| 46 | Monroe County | 2440 |
| 47 | Pickens County | 2332 |
| 48 | Henry County | 2280 |
| 49 | Macon County | 2067 |
| 50 | Fayette County | 1951 |
| 51 | Butler County | 1932 |
| 52 | Hale County | 1890 |
| 53 | Choctaw County | 1802 |
| 54 | Cleburne County | 1789 |
| 55 | Marengo County | 1750 |
| 56 | Lamar County | 1745 |
| 57 | Crenshaw County | 1742 |
| 58 | Clay County | 1694 |
| 59 | Bullock County | 1540 |
| 60 | Washington County | 1498 |
| 61 | Wilcox County | 1485 |
| 62 | Coosa County | 1217 |
| 63 | Perry County | 1188 |
| 64 | Lowndes County | 1094 |
| 65 | Conecuh County | 1077 |
| 66 | Sumter County | 982 |
| 67 | Greene County | 861 |