ZIP code · Gilbert · Pennsylvania · United States
ZIP code 18331 — Gilbert
ZIP code 18331 serves Gilbert, Pennsylvania.
- Postal code
- 18331Single source Value from one source, not cross-checked.
- City
- Gilbert
- County
- Monroe
- State
- Pennsylvania
- Country
- United States
- Coordinates
- 40.9089, -75.4314 — precision precise (locality)
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About this page
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames. Data generated on 2026-08-21. Methodology · Report an error on this page