Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — CITY/MN/FAIRMONT

Fairmont ZIP code, Minnesota

The ZIP code for Fairmont, MN is 56031, and its area code is 507.

USPS city name
1 ZIP code
Population
10,296
Area code
507

Fairmont in numbers

About 10,296 people live in Fairmont, in 4,884 households. The median household income is $53,084 a year, 40% below the Minnesota median of $89,062 (US: $80,734). The median owner-occupied home is valued at $169,900 (48% below the Minnesota median), and median gross rent is $738 a month. The median age is 46.6; 25.7% of adults 25 and over hold a bachelor's degree or higher (39.4% across Minnesota); the average commute takes 13 minutes.

Population10,296Fairmont10,296
Households4,884Fairmont4,884
Median age46.6Fairmont46.6Minnesota38.8US 38.9
Median household income$53,084Fairmont$53,084Minnesota$89,062US $80,734
Median home value$169,900Fairmont$169,900Minnesota$329,300US $332,700
Median gross rent$738Fairmont$738Minnesota$1,280US $1,413
Bachelor's degree or higher25.7%Fairmont25.7%Minnesota39.4%US 35.7%
Mean commute13.1 minFairmont13.1 minMinnesota22.7 minUS 26.4 min
Population density686 / sq miFairmont686 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Fairmont city. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes addressed as Fairmont

ZIP codes with the USPS city name Fairmont
ZIP City Type Population Median income Median home
56031 Fairmont , MN Standard 11,665 $54,847 $179,300

Map of Fairmont ZIP codes

56031

The ZIP codes of Fairmont, MN, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near Fairmont

The nearest larger towns are North Mankato (14,211 people, 43 mi), Mankato (45,473 people, 44 mi) and New Ulm (14,056 people, 46 mi).

Towns near Fairmont
TownPopulationDistance
Blue Earth 3,165 18.2 mi
St. James 4,767 24.7 mi
Estherville, IA 5,839 25.1 mi
Jackson 3,287 26.3 mi

More nearby: every ZIP code in Martin County · Minnesota ZIP codes

Cite this page

zipcodes.pro. “Fairmont, MN ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/mn/fairmont

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