Postmaster Finder
Postal History
Research Sources
Postmaster Finder
Post Offices by County
OKANOGAN COUNTY,
WASHINGTON
ZIP Code
Post Office
Date Established
Date Discontinued
98812
BREWSTER
98814
CARLTON
98819
CONCONULLY
08/06/1888
99116
COULEE DAM
98827
LOOMIS
98829
MALOTT
07/23/1890
98834
METHOW
99155
NESPELEM
98840
OKANOGAN
98841
OMAK
06/04/1907
98844
OROVILLE
98846
PATEROS
98849
RIVERSIDE
98855
TONASKET
98856
TWISP
98859
WAUCONDA
98862
WINTHROP
06/18/1891
Return to Main Menu
