Zip Code 15904 — Johnstown, PA

ZIP Code 15904 is associated with Johnstown, PA, in Cambria County. The listed population estimate is 16,026; estimated density is 214.2 people per square mile. Among records with population estimates, it ranks #2 of 46 in Cambria County and #265 of 1,811 in PA.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (40.305600, -78.843820)

Data MetricLocal Statistic
Postal / Zip Code15904
Primary CityJohnstown
State / ProvincePA
CountyCambria
Total Population16,026
Population Density214.2 people/sq mi
TimezoneAmerica/New_York

How 15904 Compares

MetricZIP 15904Cambria County recordsPA records
Population estimate16,026131,747 (sum)13,018,637 (sum)
Population Density214.2 /sq mi----
County population rank#2 of 46----
State population rank#265 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 15902Johnstown2.1 mi11,462
ZIP 15934Elton3.0 mi36
ZIP 15952Salix3.6 mi1,015
ZIP 15945Parkhill3.9 mi173
ZIP 15901Johnstown4.0 mi3,397

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 →