| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Livermore | 1 | 1,191 | 1,225 | -0.5% | 1,150 | 1 | City |
| Calhoun | 2 | 717 | 726 | -0.42% | 1,096 | 1 | City |
| Island | 3 | 449 | 436 | 0.45% | 1,332 | 0 | City |
| Sacramento | 4 | 422 | 427 | -0.24% | 981 | 0 | City |
Livermore is the largest city in McLean County, with a population of 1,191.
Sacramento is the smallest city in McLean County, with a population of 422.
There are 4 cities in McLean County, Kentucky.