5 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Livermore | 1 | 1,180 | 1,224 | -0.76% | 1,139 | 1.04 | City |
| Calhoun | 2 | 706 | 726 | -0.56% | 1,080 | 0.65 | City |
| Island | 3 | 439 | 434 | 0.23% | 1,303 | 0.34 | City |
| Sacramento | 4 | 419 | 426 | -0.24% | 974 | 0.43 | City |
| Beech Grove | 5 | 187 | 270 | -1.58% | 101 | 1.84 | CDP |
Livermore is the largest city in McLean County, with a population of 1,180.
Beech Grove is the smallest city in McLean County.
There are 5 cities in McLean County, Kentucky.