Zip Code 16142 — New Wilmington, PA

ZIP Code 16142 is associated with New Wilmington, PA, in Mercer County. The listed population estimate is 5,522; estimated density is 48.7 people per square mile. Among records with population estimates, it ranks #7 of 20 in Mercer County and #601 of 1,811 in PA.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (41.139080, -80.340840)

Data MetricLocal Statistic
Postal / Zip Code16142
Primary CityNew Wilmington
State / ProvincePA
CountyMercer
Total Population5,522
Population Density48.7 people/sq mi
TimezoneAmerica/New_York

How 16142 Compares

MetricZIP 16142Mercer County recordsPA records
Population estimate5,522109,657 (sum)13,018,637 (sum)
Population Density48.7 /sq mi----
County population rank#7 of 20----
State population rank#601 of 1,811----

Regional sums combine the population estimates in the listed ZIP records; they are not official county or state population totals.

Explore More ZIP Codes

Nearby ZIP Codes in PA

ZIP CodeCityDistancePopulation estimate
ZIP 16172New Wilmington1.6 mi983
ZIP 16105New Castle6.0 mi15,418
ZIP 16143Pulaski6.4 mi2,100
ZIP 16159West Middlesex6.8 mi4,455
ZIP 16156Volant7.0 mi3,431

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 →