City | 2024 Population |
|---|---|
| Keddie | 66 |
| Keeler | 22 |
| Keene | 551 |
| Kelly Ridge | 3,404 |
| Kelseyville | 3,738 |
| Kennedy | 2,284 |
| Kennedy Meadows | 93 |
| Kensington | 5,351 |
| Kentfield | 7,397 |
| Kenwood | 678 |
| Kep'el | 12 |
| Kerman | 17,637 |
| Kernville | 881 |
| Keswick | 132 |
| Kettleman City | 667 |
| Keyes | 5,963 |
| King City | 14,105 |
| Kings Beach | 2,352 |
| Kingsburg | 13,211 |
| Kingvale | 68 |
| Kirkwood | 283 |
| Klamath | 880 |
| Knights Ferry | 82 |
| Knights Landing | 993 |
| Knightsen | 2,192 |