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Zip Code 17851 — Mount Carmel, PA

17851 is a ZIP Code associated with Mount Carmel, PA, located within Northumberland. The postal region supports an estimated population of 7,234 residents across Data Pending housing units, with a population density of 186.4 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (40.802550, -76.433000)

Data MetricLocal Statistic
Postal / Zip Code17851
Primary CityMount Carmel
State / ProvincePA
CountyNorthumberland
Total Population7,234
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density186.4 people/sq mi
TimezoneAmerica/New_York

How 17851 Compares

MetricZIP 17851Northumberland CountyPA State Average
Population7,23483,04213,018,637
Median IncomeData PendingN/AN/A
Population Density186.4 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 17832Marion Heights1.2 mi578N/A
Zip 17840Locust Gap1.9 mi188N/A
Zip 17834Kulpmont2.4 mi3,480N/A
Zip 17858Numidia2.8 mi111N/A
Zip 17945Locustdale3.3 mi133N/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 →