Chillicothe, Ohio

1 ZIP code · Eastern time

ZIP codes (largest first)

45601 · 55,836
Population21,902
StateOhio
CountyRoss County
Time zoneEastern
Land area10.5 sq mi

Area codes in this area

380614

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

Find the ZIP+4 for an address in Chillicothe

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