Zip Code 18951 — Quakertown, PA

ZIP Code 18951 is associated with Quakertown, PA, in Bucks County. The listed population estimate is 36,568; estimated density is 197.0 people per square mile. Among records with population estimates, it ranks #4 of 48 in Bucks County and #64 of 1,811 in PA.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (40.452940, -75.338330)

Data MetricLocal Statistic
Postal / Zip Code18951
Primary CityQuakertown
State / ProvincePA
CountyBucks
Total Population36,568
Population Density197.0 people/sq mi
TimezoneAmerica/New_York

How 18951 Compares

MetricZIP 18951Bucks County recordsPA records
Population estimate36,568634,655 (sum)13,018,637 (sum)
Population Density197.0 /sq mi----
County population rank#4 of 48----
State population rank#64 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 18955Richlandtown2.5 mi1,511
ZIP 18935Milford Square3.3 mi273
ZIP 18970Trumbauersville3.6 mi553
ZIP 18036Coopersburg4.7 mi15,581
ZIP 18960Sellersville6.2 mi13,597

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 →