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Zip Code 18331 — Gilbert, PA

18331 is a ZIP Code associated with Gilbert, PA, located within Monroe. The postal region supports an estimated population of 655 residents across Data Pending housing units, with a population density of 96.3 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (40.908780, -75.440760)

Data MetricLocal Statistic
Postal / Zip Code18331
Primary CityGilbert
State / ProvincePA
CountyMonroe
Total Population655
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density96.3 people/sq mi
TimezoneAmerica/New_York

How 18331 Compares

MetricZIP 18331Monroe CountyPA State Average
Population655167,08313,018,637
Median IncomeData PendingN/AN/A
Population Density96.3 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 18322Brodheadsville2.5 mi2,724N/A
Zip 18333Kresgeville2.7 mi115N/A
Zip 18058Kunkletown2.9 mi9,674N/A
Zip 18353Saylorsburg3.8 mi10,953N/A
Zip 18330Effort3.9 mi8,219N/A

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →