Home > MT > Valley County > Saint Marie > Zip 59231

Zip Code 59231 — Saint Marie, MT

59231 is a ZIP Code associated with Saint Marie, MT, located within Valley. The postal region supports an estimated population of 306 residents across Data Pending housing units, with a population density of 212.7 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (48.403950, -106.544110)

Data MetricLocal Statistic
Postal / Zip Code59231
Primary CitySaint Marie
State / ProvinceMT
CountyValley
Total Population306
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density212.7 people/sq mi
TimezoneAmerica/Denver

How 59231 Compares

MetricZIP 59231Valley CountyMT State Average
Population3067,4311,117,606
Median IncomeData PendingN/AN/A
Population Density212.7 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 59248Nashua15.8 mi1,023N/A
Zip 59244Larslan18.9 mi63N/A
Zip 59273Vandalia19.5 mi15N/A
Zip 59241Hinsdale23.3 mi439N/A
Zip 59230Glasgow24.1 mi4,606N/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 →