4 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Twin Lakes | 1 | 8,082 | 7,552 | 1.66% | 4,922 | 1.64 | CDP |
| Leadville | 2 | 2,631 | 2,623 | 0.08% | 2,241 | 1.17 | City |
| Leadville North | 3 | 2,055 | 2,200 | 0.83% | 839 | 2.45 | CDP |
| Twin Lakes | 4 | 392 | 182 | 3.7% | 58 | 6.74 | CDP |
Twin Lakes is the largest city in Lake County, with a population of 8,082.
Twin Lakes is the smallest city in Lake County.
There are 4 cities in Lake County, Colorado.