Home > PA > Mercer County > Farrell > Zip 16121

Zip Code 16121 — Farrell, PA

16121 is a ZIP Code associated with Farrell, PA, located within Mercer. The postal region supports an estimated population of 4,199 residents across Data Pending housing units, with a population density of 712.2 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (41.211210, -80.496960)

Data MetricLocal Statistic
Postal / Zip Code16121
Primary CityFarrell
State / ProvincePA
CountyMercer
Total Population4,199
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density712.2 people/sq mi
TimezoneAmerica/New_York

How 16121 Compares

MetricZIP 16121Mercer CountyPA State Average
Population4,199109,65713,018,637
Median IncomeData PendingN/AN/A
Population Density712.2 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 16161Wheatland0.7 mi819N/A
Zip 16146Sharon1.6 mi12,936N/A
Zip 16148Hermitage3.7 mi16,545N/A
Zip 16159West Middlesex3.9 mi4,455N/A
Zip 16150Sharpsville5.9 mi6,856N/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 →