| Post Office Name | City/State | Address | Phone Number | Action |
|---|---|---|---|---|
| Clearlake Post Office | Clearlake, CA 95422 | 14500 Olympic Dr | 7079946790 | View Details Get Directions |
| Clearlake Oaks Post Office | Clearlake Oaks, CA 95423 | 13280 E Highway 20 | 7079983544 | View Details Get Directions |
| Cobb Post Office | Cobb, CA 95426 | 16595 Highway 175 | 7079285588 | View Details Get Directions |
| Finley Post Office | Finley, CA 95435 | 1904 Big Valley Rd | 7072634544 | View Details Get Directions |
| Glenhaven Post Office | Glenhaven, CA 95443 | 9530 Highway 20 | 7079983878 | View Details Get Directions |
| Kelseyville Post Office | Kelseyville, CA 95451 | 5500 Gaddy Ln | 7072794562 | View Details Get Directions |
| Lakeport Post Office | Lakeport, CA 95453 | 1151 11th St | 7072635837 | View Details Get Directions |
| Lower Lake Post Office | Lower Lake, CA 95457 | 16165 Main St | 7079946357 | View Details Get Directions |
| Lucerne Post Office | Lucerne, CA 95458 | 6054 E Highway 20 | 7072741294 | View Details Get Directions |
| Middletown Post Office | Middletown, CA 95461 | 21177 Calistoga Rd | 7079873201 | View Details Get Directions |
| Nice Post Office | Nice, CA 95464 | 3964 E State Hwy 20 | 7072741374 | View Details Get Directions |
| Potter Valley Post Office | Potter Valley, CA 95469 | 10210 Main St | 7077431002 | View Details Get Directions |
| Upper Lake Post Office | Upper Lake, CA 95485 | 9435 Main St | 7072752426 | View Details Get Directions |
| Public Collection Box | Hidden Vl Lk, CA 95461 | 10336 Loch Lomond Rd | -- | Get Directions |
| Public Collection Box | Clearlake, CA 95422 | 14822 Olympic Dr | -- | Get Directions |
| Public Collection Box | Clearlake, CA 95422 | 15292 Lakeshore Dr | -- | Get Directions |
| Public Collection Box | Clearlake Oaks, CA 95423 | 1578 New Long Valley Rd | -- | Get Directions |
| Public Collection Box | Clearlake, CA 95422 | 15896 40th Ave | -- | Get Directions |
| Public Collection Box | Clearlake, CA 95422 | 15960 Dam Rd | -- | Get Directions |
| Public Collection Box | Hidden Vl Lk, CA 95461 | 18174 Hidden Valley Rd | -- | Get Directions |
| Public Collection Box | Hidden Vl Lk, CA 95461 | 19172 Hartman Rd | -- | Get Directions |
| Public Collection Box | Lakeport, CA 95453 | 198 N Main St | -- | Get Directions |
| Public Collection Box | Hidden Vl Lk, CA 95461 | 21177 Calistoga St | -- | Get Directions |
| Public Collection Box | Lakeport, CA 95453 | 301 Forbes St | -- | Get Directions |
| Public Collection Box | Lakeport, CA 95453 | 355 Lakeport Blvd | -- | Get Directions |
| Public Collection Box | Kelseyville, CA 95451 | 3924 Main St | -- | Get Directions |
| Public Collection Box | Lakeport, CA 95453 | 450 N Main St | -- | Get Directions |
| Public Collection Box | Lakeport, CA 95453 | 912 9th St | -- | Get Directions |
| Public Collection Box | Lakeport, CA 95453 | 945 11th St | -- | Get Directions |
| Public Collection Box | Kelseyville, CA 95451 | 9730 State Highway 281 | -- | Get Directions |
