10 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Huntsville | 1 | 231,668 | 216,407 | 1.33% | 1,036 | 223.63 | City |
| Meridianville | 2 | 10,405 | 7,520 | 2.9% | 669 | 15.56 | CDP |
| Harvest | 3 | 6,590 | 5,722 | 1.35% | 534 | 12.33 | CDP |
| Moores Mill | 4 | 6,088 | 5,336 | 0.45% | 448 | 13.59 | CDP |
| Hazel Green | 5 | 4,056 | 3,629 | 0.7% | 404 | 10.03 | CDP |
| Owens Cross Roads | 6 | 3,107 | 2,631 | 3.15% | 396 | 7.85 | Town |
| New Hope | 7 | 2,951 | 2,891 | 0.41% | 341 | 8.66 | City |
| New Market | 8 | 970 | 1,115 | -4.06% | 55 | 17.53 | CDP |
| Gurley | 9 | 856 | 841 | 0.35% | 233 | 3.68 | Town |
| Redstone Arsenal | 10 | 752 | 1,292 | -9.62% | 34 | 21.81 | CDP |
Huntsville is the largest city in Madison County, with a population of 231,668.
Redstone Arsenal is the smallest city in Madison County.
There are 10 cities in Madison County, Alabama.