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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

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