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Zip Code 56031 — Fairmont, MN

ZIP Code 56031 is associated with Fairmont, MN, in Martin County. The listed population estimate is 11,665; estimated density is 28.8 people per square mile. Among records with population estimates, it ranks #1 of 11 in Martin County and #154 of 877 in MN.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (43.622460, -94.467570)

Data MetricLocal Statistic
Postal / Zip Code56031
Primary CityFairmont
State / ProvinceMN
CountyMartin
Total Population11,665
Population Density28.8 people/sq mi
TimezoneAmerica/Chicago

How 56031 Compares

MetricZIP 56031Martin County recordsMN records
Population estimate11,66520,193 (sum)5,739,754 (sum)
Population Density28.8 /sq mi----
County population rank#1 of 11----
State population rank#154 of 877----

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 MN

ZIP CodeCityDistancePopulation estimate
ZIP 56039Granada7.7 mi880
ZIP 56075Northrop7.9 mi176
ZIP 56181Welcome8.4 mi1,280
ZIP 56121Ceylon9.2 mi590
ZIP 56088Truman14.1 mi2,071

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 →