20 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Port Alsworth | 1 | 158 | 200 | 0% | 7 | 23 | CDP |
| Newhalen | 2 | 145 | 167 | -2.68% | 24 | 6 | City |
| Newhalen | 3 | 145 | 164 | -2.68% | 24 | 6 | City |
| Nondalton | 4 | 112 | 131 | -3.45% | 17 | 7 | City |
| Nondalton | 5 | 112 | 129 | -3.45% | 17 | 7 | City |
| Kokhanok | 6 | 101 | 125 | -4.72% | 5 | 21 | CDP |
| Port Heiden | 7 | 87 | 101 | -3.33% | 2 | 47 | City |
| Port Heiden | 8 | 87 | 99 | -3.33% | 2 | 47 | City |
| Chignik | 9 | 83 | 96 | -3.49% | 8 | 11 | City |
| Chignik | 10 | 83 | 95 | -3.49% | 8 | 11 | City |
| Perryville | 11 | 78 | 54 | -2.5% | 7 | 11 | CDP |
| Pilot Point | 12 | 58 | 68 | -3.33% | 2 | 25 | City |
| Pilot Point | 13 | 58 | 67 | -3.33% | 2 | 25 | City |
| Chignik Lagoon | 14 | 49 | 35 | 6.52% | 4 | 13 | CDP |
| Chignik Lake | 15 | 38 | 52 | 8.57% | 3 | 12 | CDP |
| Levelock | 16 | 35 | 40 | 6.06% | 2 | 17 | CDP |
| Egegik | 17 | 33 | 38 | -2.94% | 1 | 30 | City |
| Egegik | 18 | 33 | 37 | -2.94% | 1 | 30 | City |
| Pedro Bay | 19 | 16 | 21 | 6.67% | 1 | 19 | CDP |
| Iliamna | 20 | 8 | 43 | -42.86% | 0.00 | 37 | CDP |
Port Alsworth is the largest city in Lake and Peninsula Borough, with a population of 158.
Iliamna is the smallest city in Lake and Peninsula Borough, with a population of 8.
There are 20 cities in Lake and Peninsula Borough, Alaska.