Zip Code 18920 — Erwinna, PA

ZIP Code 18920 is associated with Erwinna, PA, in Bucks County. The listed population estimate is 393; estimated density is 39.3 people per square mile. Among records with population estimates, it ranks #39 of 48 in Bucks County and #1405 of 1,811 in PA.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (40.492640, -75.090670)

Data MetricLocal Statistic
Postal / Zip Code18920
Primary CityErwinna
State / ProvincePA
CountyBucks
Total Population393
Population Density39.3 people/sq mi
TimezoneAmerica/New_York

How 18920 Compares

MetricZIP 18920Bucks County recordsPA records
Population estimate393634,655 (sum)13,018,637 (sum)
Population Density39.3 /sq mi----
County population rank#39 of 48----
State population rank#1405 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 18972Upper Black Eddy3.2 mi3,104
ZIP 18950Point Pleasant3.4 mi262
ZIP 18942Ottsville4.0 mi2,377
ZIP 18947Pipersville4.7 mi6,477
ZIP 18921Ferndale5.1 mi160

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 →