Johnson County Post Offices

55 Main St
Buncombe, Illinois 62912

7824 Main St
Cypress, Illinois 62923

117 S Broadway
Goreville, Illinois 62939

8655 State Route 146 E
Grantsburg, Illinois 62943

20 W 2nd St
New Burnside, Illinois 62967

495 Ozark Rd
Ozark, Illinois 62972

329 Main St
Simpson, Illinois 62985

207 E Vine St
Vienna, Illinois 62995

Johnson County

There are 8 US Post Offices in Johnson County serving a total of 13,191 residents equating to 1,649 residents per post office. It's estimated that approximately 21,054 packages are handled across the 8 county post offices annually. Johnson County is a county located in the U.S. state of Illinois. According to the 2010 census, it has a population of 12,582. Its county seat is Vienna. It is located in the southern portion of Illinois known locally as \"Little Egypt\"."