11 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Mobile | 1 | 200,086 | 206,488 | -0.64% | 1,326 | 151 | City |
| Prichard | 2 | 18,654 | 19,272 | -0.66% | 737 | 25 | City |
| Saraland | 3 | 16,512 | 16,239 | 0.33% | 478 | 35 | City |
| Satsuma | 4 | 6,903 | 6,757 | 0.42% | 939 | 7 | City |
| Semmes | 5 | 6,456 | 5,141 | 4.25% | 409 | 16 | City |
| Chickasaw | 6 | 6,187 | 6,455 | -0.87% | 1,471 | 4 | City |
| Citronelle | 7 | 3,927 | 3,930 | -0.03% | 152 | 26 | City |
| Bayou La Batre | 8 | 2,110 | 2,178 | -0.66% | 282 | 7 | City |
| Creola | 9 | 1,981 | 1,934 | 0.46% | 126 | 16 | City |
| Dauphin Island | 10 | 1,958 | 1,783 | 1.82% | 313 | 6 | Town |
| Mount Vernon | 11 | 1,371 | 1,346 | 0.37% | 250 | 5 | Town |
Mobile is the largest city in Mobile County, with a population of 200,086.
Mount Vernon is the smallest city in Mobile County, with a population of 1,371.
There are 11 cities in Mobile County, Alabama.