Washington County, Illinois Zip Codes

Zip Code	City	Population
62263	Nashville	5,109
62271	Okawville	1,994
62808	Ashley	1,902
62803	Hoyleton	1,128
62214	Addieville	1,050
62268	Oakdale	1,001
62848	Irvington	514
62877	Richview	441
62831	Du Bois	380
62876	Radom	135

Population is the most recent figure from the U.S. Census Bureau's 2022 American Community Survey (ACS) 5-Year Estimates.