| ZIP Code | ZIP Code Place Name | County | ZIP Code Type |
|---|---|---|---|
| 95422 | Clearlake | Lake County | Standard |
| 95423 | Clearlake Oaks | Lake County | Standard |
| 95424 | Clearlake Park | Lake County | PO Box |
| 95426 | Cobb | Lake County | PO Box |
| 95435 | Finley | Lake County | PO Box |
| 95443 | Glenhaven | Lake County | Standard |
| 95448 | Healdsburg | Sonoma County | Standard |
| 95451 | Kelseyville | Lake County | Standard |
| 95453 | Lakeport | Lake County | Standard |
| 95457 | Lower Lake | Lake County | Standard |
| 95458 | Lucerne | Lake County | Standard |
| 95461 | Middletown | Lake County | Standard |
| 95464 | Nice | Lake County | Standard |
| 95467 | Hidden Valley Lake | Lake County | Standard |
| 95469 | Potter Valley | Mendocino County | Standard |
| 95481 | Talmage | Mendocino County | PO Box |
| 95485 | Upper Lake | Lake County | Standard |
| 95493 | Witter Springs | Lake County | Standard |