| County | Rank | Change (2020) ↓ | 2026 Pop. | 2020 Pop. |
|---|---|---|---|---|
| Limestone County | 1 | 21.7% | 126,805 | 104,193 |
| Baldwin County | 2 | 17.41% | 273,870 | 233,252 |
| Madison County | 3 | 13.69% | 443,961 | 390,515 |
| Lee County | 4 | 9.8% | 191,980 | 174,838 |
| St. Clair County | 5 | 8.36% | 99,366 | 91,703 |
| Cullman County | 6 | 8.08% | 95,247 | 88,128 |
| Henry County | 7 | 8.05% | 18,554 | 17,172 |
| Shelby County | 8 | 7.77% | 241,298 | 223,898 |
| Coffee County | 9 | 7.19% | 57,424 | 53,571 |
| Cherokee County | 10 | 7.05% | 26,738 | 24,978 |
| Cleburne County | 11 | 6.9% | 16,102 | 15,062 |
| Marshall County | 12 | 6.67% | 104,214 | 97,696 |
| Chilton County | 13 | 6.66% | 48,052 | 45,053 |
| Autauga County | 14 | 5.86% | 62,364 | 58,914 |
| Randolph County | 15 | 5.26% | 23,260 | 22,097 |
| Elmore County | 16 | 4.82% | 92,103 | 87,866 |
| Colbert County | 17 | 4.48% | 59,875 | 57,306 |
| DeKalb County | 18 | 4.08% | 74,589 | 71,662 |
| Geneva County | 19 | 4.04% | 27,777 | 26,698 |
| Tuscaloosa County | 20 | 3.98% | 241,856 | 232,604 |
| Jackson County | 21 | 3.97% | 54,627 | 52,542 |
| Pike County | 22 | 3.86% | 34,177 | 32,906 |
| Houston County | 23 | 3.38% | 110,929 | 107,306 |
| Hale County | 24 | 3.21% | 15,242 | 14,768 |
| Lauderdale County | 25 | 3.13% | 96,972 | 94,032 |
| Lawrence County | 26 | 2.87% | 34,035 | 33,085 |
| Morgan County | 27 | 2.75% | 126,718 | 123,321 |
| Franklin County | 28 | 1.94% | 32,709 | 32,088 |
| Blount County | 29 | 1.76% | 60,139 | 59,099 |
| Winston County | 30 | 1.21% | 23,788 | 23,503 |
| Covington County | 31 | 1.12% | 37,928 | 37,508 |
| Dale County | 32 | 1.08% | 49,800 | 49,266 |
| Etowah County | 33 | 0.83% | 104,297 | 103,441 |
| Bibb County | 34 | 0.53% | 22,299 | 22,181 |
| Talladega County | 35 | 0.41% | 81,725 | 81,390 |
| Crenshaw County | 36 | 0.28% | 13,211 | 13,174 |
| Walker County | 37 | 0.02% | 65,163 | 65,147 |
| Escambia County | 38 | -0.08% | 36,657 | 36,685 |
| Clay County | 39 | -0.1% | 14,202 | 14,216 |
| Tallapoosa County | 40 | -0.67% | 41,014 | 41,292 |
| Russell County | 41 | -0.7% | 58,837 | 59,251 |
| Calhoun County | 42 | -0.75% | 115,365 | 116,238 |
| Mobile County | 43 | -0.79% | 411,123 | 414,414 |
| Barbour County | 44 | -1.06% | 24,694 | 24,958 |
| Montgomery County | 45 | -1.07% | 225,893 | 228,345 |
| Chambers County | 46 | -1.11% | 34,197 | 34,581 |
| Marion County | 47 | -1.22% | 28,836 | 29,192 |
| Jefferson County | 48 | -1.46% | 664,899 | 674,720 |
| Lamar County | 49 | -2.33% | 13,621 | 13,946 |
| Coosa County | 50 | -2.9% | 10,038 | 10,338 |
| Fayette County | 51 | -3.11% | 15,823 | 16,331 |
| Washington County | 52 | -4.32% | 14,672 | 15,334 |
| Monroe County | 53 | -4.39% | 18,841 | 19,707 |
| Clarke County | 54 | -4.7% | 21,901 | 22,982 |
| Pickens County | 55 | -5.19% | 17,973 | 18,956 |
| Bullock County | 56 | -5.29% | 9,697 | 10,239 |
| Sumter County | 57 | -5.3% | 11,547 | 12,193 |
| Butler County | 58 | -5.77% | 17,924 | 19,022 |
| Marengo County | 59 | -5.78% | 18,152 | 19,266 |
| Conecuh County | 60 | -6.93% | 10,753 | 11,554 |
| Choctaw County | 61 | -7.17% | 11,718 | 12,623 |
| Macon County | 62 | -7.58% | 17,989 | 19,464 |
| Dallas County | 63 | -9.12% | 34,696 | 38,176 |
| Greene County | 64 | -9.13% | 6,998 | 7,701 |
| Wilcox County | 65 | -10.41% | 9,442 | 10,539 |
| Lowndes County | 66 | -10.5% | 9,201 | 10,281 |
| Perry County | 67 | -14.56% | 7,224 | 8,455 |
Alabama's counties show varied growth patterns from 2020 to 2026. Limestone County leads with 3.33% annualized growth, followed by Baldwin County (2.71%) and Madison County (2.16%). The largest counties are Jefferson County (664,899), Madison County (443,961), and Mobile County (411,123). Of the 67 counties in Alabama, 37 are growing while 30 have experienced population decline. Overall, counties averaged 0.12% annualized growth, with total population growing by 0.62% annually.
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