There are 5 United States Postal Service post boxes available to the public in Upper Lake, CA. You can use any one of these locations to mail your letter or small package. For additional collection boxes in neighboring communities, see the list of post boxes in California.

Are you looking for a post office? See the list of post offices in Upper Lake, CA.

Public Collection Box
160 E State Highway 20
Directions
Public Collection Box
9435 Main St
Directions
Mailbox in Post Office Lobby
3964 E State Hwy 20
Directions
Public Collection Box
6054 E Highway 20
Directions
CVS
949 11 Th St
Directions