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Zip Code 59401 — Great Falls, MT

59401 is a ZIP Code associated with Great Falls, MT, located within Cascade. The postal region supports an estimated population of 13,255 residents across Data Pending housing units, with a population density of 1,727.9 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (47.510830, -111.276910)

Data MetricLocal Statistic
Postal / Zip Code59401
Primary CityGreat Falls
State / ProvinceMT
CountyCascade
Total Population13,255
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density1,727.9 people/sq mi
TimezoneAmerica/Denver

How 59401 Compares

MetricZIP 59401Cascade CountyMT State Average
Population13,25584,5841,117,606
Median IncomeData PendingN/AN/A
Population Density1,727.9 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 59414Black Eagle1.2 mi781N/A
Zip 59404Great Falls9.0 mi28,822N/A
Zip 59472Sand Coulee10.3 mi507N/A
Zip 59485Ulm14.6 mi772N/A
Zip 59405Great Falls15.9 mi33,350N/A

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 →