Washington County, Illinois Zip Codes

10 zips

Zip Code
City
Population ↓
62263Nashville5,109
62271Okawville1,994
62808Ashley1,902
62803Hoyleton1,128
62214Addieville1,050
62268Oakdale1,001
62848Irvington514
62877Richview441
62831Du Bois380
62876Radom135

Overview of Zip Codes in Washington County

10
ZIP Codes

The data shown reflect ZCTAs from the US Census. As of 2024, there are 10 ZCTAs in Washington County, Illinois (US Census).