There are 19 zip codes in Okanogan County, Washington. The most populated is 98841, located in Omak. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
City
Population
98841Omak9,218
98855Tonasket5,806
98812Brewster5,422
98840Okanogan4,775
98844Oroville4,348
98862Winthrop3,075
98856Twisp2,497
99116Coulee Dam1,538
98846Pateros1,381
98849Riverside1,098
99155Nespelem977
98814Carlton688
98829Malott638
98827Loomis479
98859Wauconda353
99124Elmer City270
98834Methow245
98819Conconully205
98833Mazama153

Okanogan County, Washington Zip Codes by Population (2024)