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Zip Code 17320 — Fairfield, PA

17320 is a ZIP Code associated with Fairfield, PA, located within Adams. The postal region supports an estimated population of 8,124 residents across Data Pending housing units, with a population density of 55.0 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (39.769500, -77.387490)

Data MetricLocal Statistic
Postal / Zip Code17320
Primary CityFairfield
State / ProvincePA
CountyAdams
Total Population8,124
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density55.0 people/sq mi
TimezoneAmerica/New_York

How 17320 Compares

MetricZIP 17320Adams CountyPA State Average
Population8,12495,89113,018,637
Median IncomeData PendingN/AN/A
Population Density55.0 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 17214Blue Ridge Summit4.6 mi1,143N/A
Zip 17343McKnightstown7.5 mi31N/A
Zip 17250Rouzerville7.6 miN/AN/A
Zip 17353Orrtanna8.1 mi2,825N/A
Zip 17261South Mountain9.1 miN/AN/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 →