Clinton County Post Offices

115 S Wright St
Blanchester, Ohio 45107

75 Spring Hill Rd
Clarksville, Ohio 45113

157 State Route 350 E
Cuba, Ohio 45114

33 High St
Martinsville, Ohio 45146

209 W Main St
New Vienna, Ohio 45159

227 Main St
Port William, Ohio 45164

540 N State Route 72
Reesville, Ohio 45166

39 N Howard St
Sabina, Ohio 45169

1515 Alex Dr
Wilmington, Ohio 45177

Clinton County

There are 9 US Post Offices in Clinton County serving a total of 45,466 residents equating to 5,052 residents per post office. It's estimated that approximately 72,569 packages are handled across the 9 county post offices annually. Clinton County is a county located in the U.S. state of Ohio. As of the 2010 census, the population was 42,040. The county seat is Wilmington. The county is named for former U.S. Vice President George Clinton. Clinton County comprises the Wilmington, Ohio Micropolitan Statistical Area, which is also included in the Cincinnati-Wilmington-Maysville, OH-KY-IN Combined Statistical Area."