Warren County ZIP Codes
Pennsylvania, United States · 20 codes
Warren County in Pennsylvania has 20 ZIP codes, from 16312 to 16436, serving 20 places.
ZIP codes in Warren
Frequently asked questions
What is the ZIP code of Warren?
Warren has 20 ZIP codes, from 16312 to 16436. The table lists the places each one serves.
How many places are listed in Warren County?
20 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.