14 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 95422 | Clearlake | 17,101 |
| 95451 | Kelseyville | 12,793 |
| 95453 | Lakeport | 11,888 |
| 95467 | Hidden Valley Lake | 5,721 |
| 95461 | Middletown | 3,720 |
| 95423 | Clearlake Oaks | 3,432 |
| 95458 | Lucerne | 3,365 |
| 95457 | Lower Lake | 3,036 |
| 95485 | Upper Lake | 2,900 |
| 95464 | Nice | 2,417 |
| 95426 | Cobb | 1,265 |
| 95435 | Finley | 340 |
| 95493 | Witter Springs | 91 |
| 95443 | Glenhaven | 70 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 14 ZCTAs in Lake County, California (US Census).