Note: As defined by the US Census Bureau, a city's official boundaries often extend miles beyond the city itself and may even cross county lines. As such, several thousand US cities officially exist in two or more counties (and therefore appear on multiple counties' lists of cities.)
City | Rank | 2024 Pop. | 2020 Pop. | Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Kalifornsky | 1 | 8,468 | 8,395 | 0.52% | 123 | 68.8 | CDP |
| Kenai | 2 | 7,848 | 7,438 | 1.32% | 269 | 29.1 | City |
| Sterling | 3 | 6,422 | 5,150 | 0.91% | 83 | 77.8 | CDP |
| Homer | 4 | 6,203 | 5,551 | 2.7% | 450 | 13.8 | City |
| Soldotna | 5 | 4,651 | 4,355 | 1.62% | 672 | 6.9 | City |
| Nikiski | 6 | 4,390 | 4,324 | -0.18% | 63 | 69.5 | CDP |
| Ridgeway | 7 | 2,870 | 2,631 | 2.14% | 171 | 16.8 | CDP |
| Seward | 8 | 2,733 | 2,741 | -0.07% | 196 | 14.0 | City |
| Anchor Point | 9 | 2,315 | 2,247 | 1.18% | 25 | 91.6 | CDP |
| Fritz Creek | 10 | 2,202 | 2,034 | 0.92% | 41 | 54.0 | CDP |
| Cohoe | 11 | 1,546 | 1,469 | 0.85% | 22 | 69.9 | CDP |
| Diamond Ridge | 12 | 1,437 | 1,336 | 1.41% | 34 | 42.4 | CDP |
| Salamatof | 13 | 1,224 | 1,025 | 1.49% | 152 | 8.0 | CDP |
| Bear Creek | 14 | 1,171 | 1,287 | -4.56% | 31 | 38.3 | CDP |
| Funny River | 15 | 1,104 | 1,340 | 1.47% | 41 | 26.7 | CDP |
| Ninilchik | 16 | 978 | 898 | 0.72% | 5 | 207.2 | CDP |
| Happy Valley | 17 | 774 | 667 | 1.71% | 9 | 88.2 | CDP |
| Fox River | 18 | 716 | 526 | 0.28% | 6 | 125.4 | CDP |
| Kachemak | 19 | 597 | 573 | 1.01% | 357 | 1.7 | City |
| Clam Gulch | 20 | 296 | 251 | 2.78% | 22 | 13.3 | CDP |
| Tyonek | 21 | 286 | 415 | 2.88% | 4 | 67.9 | CDP |
| Seldovia | 22 | 252 | 235 | 1.61% | 651 | 0.4 | City |
| Halibut Cove | 23 | 246 | 188 | 7.42% | 30 | 8.3 | CDP |
| Kasilof | 24 | 234 | 705 | -8.59% | 22 | 10.4 | CDP |
| Seldovia Village | 25 | 216 | 175 | 1.41% | 12 | 18.1 | CDP |
| Cooper Landing | 26 | 213 | 263 | -2.74% | 3 | 65.8 | CDP |
| Moose Pass | 27 | 196 | 247 | -0.51% | 11 | 17.7 | CDP |
| Nikolaevsk | 28 | 185 | 188 | -4.64% | 5 | 34.8 | CDP |
| Nanwalek | 29 | 158 | 213 | -4.24% | 19 | 8.4 | CDP |
| Port Graham | 30 | 136 | 150 | -2.16% | 21 | 6.4 | CDP |
| Hope | 31 | 123 | 79 | -3.91% | 2 | 51.7 | CDP |
| Primrose | 32 | 98 | 117 | 7.69% | 3 | 34.5 | CDP |
| Crown Point | 33 | 72 | 57 | 7.46% | 20 | 3.6 | CDP |
| Sunrise | 34 | 16 | 39 | 6.67% | 1 | 13.0 | CDP |
| Beluga | 35 | 5 | 5 | 25% | 0.00 | 99.1 | CDP |
Note: City markers shown outside the county boundary mean that a part of the city extends into this county, but is primarily located in an adjacent county.
Kalifornsky is the largest city in Kenai Peninsula Borough.
Beluga is the smallest city in Kenai Peninsula Borough.
There are 35 cities in Kenai Peninsula Borough, Alaska.