Washington County Post Offices

226 N Middle St
Addieville, Illinois 62214

167 E Jackson St
Ashley, Illinois 62808

75 W Broadway St
Du Bois, Illinois 62831

75 E Saint Louis St
Hoyleton, Illinois 62803

108 N 2nd St
Irvington, Illinois 62848

181 S Kaskaskia St
Nashville, Illinois 62263

21 E 2nd St
Oakdale, Illinois 62268

113 E Walnut St
Okawville, Illinois 62271

15 S 3rd St
Radom, Illinois 62876

218 S Shannon Ave
Richview, Illinois 62877

Washington County

There are 10 US Post Offices in Washington County serving a total of 13,872 residents equating to 1,387 residents per post office. It's estimated that approximately 22,141 packages are handled across the 10 county post offices annually. Washington County is a county located in the U.S. state of Illinois. According to the 2010 census, it had a population of 14,716. Its county seat is Nashville. It is located in the southern portion of Illinois known locally as \"Little Egypt\"."