Knox County, Ohio

8 ZIP codes · 525.5 sq mi of land · FIPS 39083

Population63,142
StateOhio
FIPS code39083
Time zoneEastern
Land area525.5 sq mi
Center (lat, long)40.4036, -82.4224

Area codes in this area

380614

These are the area codes that most often serve Knox County (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.

Cities and towns (largest first)

Mount Vernon · 17,052BladensburgCenterburgDanvilleFredericktownGambierHowardMartinsburg

ZIP codes in Knox County

43005 Bladensburg43011 Centerburg43014 Danville43019 Fredericktown43022 Gambier43028 Howard43037 Martinsburg43050 Mount Vernon

Population: U.S. Census Bureau, ACS 5-year estimates, 2024.