Putnam County ZIP Codes
Ohio, United States · 14 codes
Putnam County in Ohio has 14 ZIP codes, from 45815 to 45893, serving 14 places.
ZIP codes in Putnam
Frequently asked questions
What is the ZIP code of Putnam?
Putnam has 14 ZIP codes, from 45815 to 45893. The table lists the places each one serves.
How many places are listed in Putnam County?
14 places.
Source: GeoNames postal codes (CC BY 4.0), geonames.org, retrieved 2026-10-22. Place coordinates are approximate. Check with the national postal service before sending anything valuable.