Zip Code 19403 — Norristown, PA

ZIP Code 19403 is associated with Norristown, PA, in Montgomery County. The listed population estimate is 44,017; estimated density is 759.8 people per square mile. Among records with population estimates, it ranks #3 of 58 in Montgomery County and #32 of 1,811 in PA.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (40.148980, -75.380340)

Data MetricLocal Statistic
Postal / Zip Code19403
Primary CityNorristown
State / ProvincePA
CountyMontgomery
Total Population44,017
Population Density759.8 people/sq mi
TimezoneAmerica/New_York

How 19403 Compares

MetricZIP 19403Montgomery County recordsPA records
Population estimate44,017842,950 (sum)13,018,637 (sum)
Population Density759.8 /sq mi----
County population rank#3 of 58----
State population rank#32 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 19401Norristown2.9 mi43,359
ZIP 19490Worcester3.6 mi507
ZIP 19406King Of Prussia3.8 mi30,362
ZIP 19426Collegeville4.1 mi43,460
ZIP 19405Bridgeport4.2 mi5,145

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 →