| County | Rank | Change (2020) ↓ | 2025 Pop. | 2020 Pop. |
|---|---|---|---|---|
| Limestone County | 1 | 18.11% | 123,081 | 104,209 |
| Baldwin County | 2 | 15.38% | 269,109 | 233,244 |
| Madison County | 3 | 10.83% | 432,819 | 390,527 |
| Lee County | 4 | 9.47% | 191,423 | 174,856 |
| St. Clair County | 5 | 7.29% | 98,367 | 91,687 |
| Cleburne County | 6 | 7.23% | 16,152 | 15,063 |
| Henry County | 7 | 7.22% | 18,410 | 17,171 |
| Chilton County | 8 | 6.52% | 47,999 | 45,060 |
| Shelby County | 9 | 6.44% | 238,345 | 223,915 |
| Coffee County | 10 | 6.43% | 57,009 | 53,565 |
| Cherokee County | 11 | 6.38% | 26,576 | 24,981 |
| Autauga County | 12 | 6.08% | 62,492 | 58,909 |
| Cullman County | 13 | 5.85% | 93,299 | 88,142 |
| Marshall County | 14 | 5.7% | 103,271 | 97,706 |
| Randolph County | 15 | 5.67% | 23,345 | 22,093 |
| Tuscaloosa County | 16 | 4.54% | 243,220 | 232,651 |
| Lauderdale County | 17 | 4.37% | 98,137 | 94,031 |
| Elmore County | 18 | 4.32% | 91,668 | 87,871 |
| Hale County | 19 | 3.59% | 15,301 | 14,771 |
| Colbert County | 20 | 3.29% | 59,188 | 57,305 |
| Jackson County | 21 | 3.06% | 54,137 | 52,532 |
| Geneva County | 22 | 2.86% | 27,466 | 26,703 |
| Morgan County | 23 | 2.74% | 126,713 | 123,329 |
| DeKalb County | 24 | 2.71% | 73,618 | 71,673 |
| Houston County | 25 | 2.68% | 110,176 | 107,300 |
| Winston County | 26 | 2.46% | 24,065 | 23,488 |
| Blount County | 27 | 2.43% | 60,549 | 59,110 |
| Dale County | 28 | 2.07% | 50,282 | 49,260 |
| Bibb County | 29 | 2.03% | 22,626 | 22,176 |
| Lawrence County | 30 | 1.67% | 33,629 | 33,075 |
| Walker County | 31 | 0.82% | 65,675 | 65,141 |
| Clay County | 32 | 0.78% | 14,321 | 14,210 |
| Marion County | 33 | 0.66% | 29,367 | 29,175 |
| Pike County | 34 | 0.55% | 33,085 | 32,904 |
| Covington County | 35 | 0.33% | 37,635 | 37,513 |
| Talladega County | 36 | 0.31% | 81,667 | 81,416 |
| Calhoun County | 37 | 0.18% | 116,451 | 116,242 |
| Escambia County | 38 | -0.02% | 36,678 | 36,687 |
| Etowah County | 39 | -0.19% | 103,240 | 103,437 |
| Coosa County | 40 | -0.24% | 10,315 | 10,340 |
| Mobile County | 41 | -0.36% | 412,933 | 414,409 |
| Russell County | 42 | -0.62% | 58,882 | 59,252 |
| Franklin County | 43 | -0.84% | 31,807 | 32,076 |
| Crenshaw County | 44 | -0.84% | 13,060 | 13,171 |
| Montgomery County | 45 | -1.11% | 225,822 | 228,363 |
| Jefferson County | 46 | -1.38% | 665,404 | 674,727 |
| Tallapoosa County | 47 | -1.45% | 40,689 | 41,288 |
| Washington County | 48 | -2.19% | 14,996 | 15,331 |
| Chambers County | 49 | -2.99% | 33,539 | 34,572 |
| Fayette County | 50 | -3.16% | 15,813 | 16,329 |
| Bullock County | 51 | -3.28% | 9,894 | 10,230 |
| Lamar County | 52 | -3.47% | 13,470 | 13,954 |
| Barbour County | 53 | -3.62% | 24,072 | 24,975 |
| Pickens County | 54 | -3.62% | 18,275 | 18,962 |
| Monroe County | 55 | -4.23% | 18,870 | 19,704 |
| Clarke County | 56 | -4.39% | 21,979 | 22,989 |
| Conecuh County | 57 | -4.42% | 11,041 | 11,551 |
| Butler County | 58 | -4.58% | 18,155 | 19,027 |
| Marengo County | 59 | -4.94% | 18,319 | 19,271 |
| Sumter County | 60 | -5.86% | 11,477 | 12,192 |
| Choctaw County | 61 | -6.19% | 11,841 | 12,622 |
| Wilcox County | 62 | -6.91% | 9,805 | 10,533 |
| Macon County | 63 | -7.71% | 17,971 | 19,472 |
| Dallas County | 64 | -8.88% | 34,796 | 38,185 |
| Perry County | 65 | -9.34% | 7,666 | 8,456 |
| Lowndes County | 66 | -9.68% | 9,288 | 10,284 |
| Greene County | 67 | -9.69% | 6,955 | 7,701 |
Alabama's counties show varied growth patterns from 2020 to 2025. Limestone County leads with 18.11% annualized growth, followed by Baldwin County (15.38%) and Madison County (10.83%). The largest counties are Jefferson County (665,404), Madison County (432,819), and Mobile County (412,933). Of the 67 counties in Alabama, 37 are growing while 30 have experienced population decline. Overall, counties averaged 0.85% annualized growth, with total population growing by 3.27% annually.
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