| County | Rank | Change (2020) ↓ | 2026 Pop. | 2020 Pop. |
|---|---|---|---|---|
| Limestone County | 1 | 22.08% | 127,220 | 104,209 |
| Baldwin County | 2 | 18.59% | 276,610 | 233,244 |
| Madison County | 3 | 13.25% | 442,283 | 390,527 |
| Lee County | 4 | 11.52% | 194,999 | 174,856 |
| Cleburne County | 5 | 8.87% | 16,399 | 15,063 |
| St. Clair County | 6 | 8.86% | 99,807 | 91,687 |
| Henry County | 7 | 8.78% | 18,679 | 17,171 |
| Chilton County | 8 | 8.16% | 48,736 | 45,060 |
| Cherokee County | 9 | 8.14% | 27,014 | 24,981 |
| Autauga County | 10 | 7.83% | 63,520 | 58,909 |
| Coffee County | 11 | 7.64% | 57,660 | 53,565 |
| Shelby County | 12 | 7.51% | 240,721 | 223,915 |
| Randolph County | 13 | 6.93% | 23,623 | 22,093 |
| Marshall County | 14 | 6.84% | 104,386 | 97,706 |
| Cullman County | 15 | 6.64% | 93,994 | 88,142 |
| Tuscaloosa County | 16 | 5.41% | 245,228 | 232,651 |
| Lauderdale County | 17 | 5.04% | 98,772 | 94,031 |
| Elmore County | 18 | 5.03% | 92,294 | 87,871 |
| Hale County | 19 | 4.84% | 15,486 | 14,771 |
| Colbert County | 20 | 3.99% | 59,591 | 57,305 |
| Jackson County | 21 | 3.73% | 54,494 | 52,532 |
| Bibb County | 22 | 3.69% | 22,994 | 22,176 |
| Geneva County | 23 | 3.63% | 27,673 | 26,703 |
| Houston County | 24 | 3.44% | 110,986 | 107,300 |
| DeKalb County | 25 | 3.41% | 74,114 | 71,673 |
| Winston County | 26 | 3.29% | 24,261 | 23,488 |
| Morgan County | 27 | 3.25% | 127,342 | 123,329 |
| Blount County | 28 | 3.09% | 60,935 | 59,110 |
| Dale County | 29 | 2.51% | 50,497 | 49,260 |
| Lawrence County | 30 | 1.86% | 33,691 | 33,075 |
| Walker County | 31 | 1.46% | 66,090 | 65,141 |
| Clay County | 32 | 1.36% | 14,403 | 14,210 |
| Marion County | 33 | 0.81% | 29,411 | 29,175 |
| Talladega County | 34 | 0.67% | 81,959 | 81,416 |
| Pike County | 35 | 0.43% | 33,046 | 32,904 |
| Calhoun County | 36 | 0.2% | 116,475 | 116,242 |
| Escambia County | 37 | 0.11% | 36,726 | 36,687 |
| Covington County | 38 | 0.02% | 37,522 | 37,513 |
| Coosa County | 39 | -0.01% | 10,339 | 10,340 |
| Etowah County | 40 | -0.16% | 103,273 | 103,437 |
| Mobile County | 41 | -0.21% | 413,527 | 414,409 |
| Russell County | 42 | -0.55% | 58,927 | 59,252 |
| Franklin County | 43 | -1.05% | 31,740 | 32,076 |
| Montgomery County | 44 | -1.14% | 225,750 | 228,363 |
| Crenshaw County | 45 | -1.25% | 13,006 | 13,171 |
| Jefferson County | 46 | -1.28% | 666,064 | 674,727 |
| Tallapoosa County | 47 | -1.48% | 40,679 | 41,288 |
| Washington County | 48 | -2.33% | 14,974 | 15,331 |
| Bullock County | 49 | -3.35% | 9,887 | 10,230 |
| Fayette County | 50 | -3.47% | 15,763 | 16,329 |
| Chambers County | 51 | -3.78% | 33,265 | 34,572 |
| Lamar County | 52 | -3.99% | 13,397 | 13,954 |
| Barbour County | 53 | -4.76% | 23,786 | 24,975 |
| Pickens County | 54 | -4.85% | 18,042 | 18,962 |
| Conecuh County | 55 | -5% | 10,973 | 11,551 |
| Clarke County | 56 | -5.1% | 21,816 | 22,989 |
| Butler County | 57 | -5.11% | 18,054 | 19,027 |
| Monroe County | 58 | -5.18% | 18,683 | 19,704 |
| Marengo County | 59 | -5.94% | 18,126 | 19,271 |
| Sumter County | 60 | -6.93% | 11,347 | 12,192 |
| Wilcox County | 61 | -7.48% | 9,745 | 10,533 |
| Choctaw County | 62 | -7.86% | 11,630 | 12,622 |
| Macon County | 63 | -8.67% | 17,783 | 19,472 |
| Perry County | 64 | -9.97% | 7,613 | 8,456 |
| Dallas County | 65 | -10.84% | 34,047 | 38,185 |
| Lowndes County | 66 | -11.6% | 9,091 | 10,284 |
| Greene County | 67 | -11.92% | 6,783 | 7,701 |
Alabama's counties show varied growth patterns from 2020 to 2026. Limestone County leads with 3.38% annualized growth, followed by Baldwin County (2.88%) and Madison County (2.1%). The largest counties are Jefferson County (666,064), Madison County (442,283), and Mobile County (413,527). Of the 67 counties in Alabama, 38 are growing while 29 have experienced population decline. Overall, counties averaged 0.16% annualized growth, with total population growing by 0.67% annually.
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