Lake county post offices

Click on the Post Office name for operating hours, location address, and other information.

16595 Highway 175

Cobb

3964 E State Hwy 20

Nice

21177 Calistoga Rd

Middletown

9530 Highway 20

Glenhaven

5500 Gaddy Ln

Kelseyville

1151 11th St

Lakeport

16165 Main St

Lower Lake

6054 E Highway 20

Lucerne

14500 Olympic Dr

Clearlake

13280 E Highway 20

Clearlake Oaks

13417 Lakeshore Dr

Clearlake Park

1904 Big Valley Rd

Finley

9435 Main St

Upper Lake

*uspspostoffices.com is not a part of, or affiliated with, the official United States Postal Service (USPS).