Fairmont, MN micro area ZIP codes
The Fairmont, MN micropolitan statistical area (CBSA 21860) covers 1 county in Minnesota and 11 ZIP codes.
- ZIP codes
- 11
- Population
- 20,193
- Avg. median income
- $59,900population-weighted
- Counties
- 1
Click anywhere on the map to see which ZIP code it's in.
Counties in the Fairmont, MN area
ZIP codes in the Fairmont, MN area
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 56031 | Fairmont | Martin County | 11,665 | $54,847 | $198,000 |
| 56039 | Granada | Martin County | 880 | $84,342 | $348,700 |
| 56075 | Northrop | Martin County | 176 | $73,750 | $121,400 |
| 56088 | Truman | Martin County | 2,071 | $71,354 | $212,400 |
| 56121 | Ceylon | Martin County | 590 | $49,042 | $163,300 |
| 56127 | Dunnell | Martin County | 474 | $42,292 | $341,800 |
| 56160 | Odin | Martin County | 224 | $66,667 | $94,200 |
| 56162 | Ormsby | Martin County | 313 | $88,625 | $255,600 |
| 56171 | Sherburn | Martin County | 1,632 | $72,554 | $240,600 |
| 56176 | Trimont | Martin County | 888 | $59,125 | $218,700 |
| 56181 | Welcome | Martin County | 1,280 | $55,750 | $226,000 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Frequently asked questions
How many ZIP codes are in the Fairmont, MN micro area?
11 ZIP codes, based on each ZIP code's main county.
Which counties make up the Fairmont, MN area?
Martin County.
What is an MSA?
A metropolitan statistical area (MSA) is a core city of 50,000+ people plus the surrounding counties tied to it by commuting, as defined by the U.S. Office of Management and Budget. Micropolitan areas have a core of 10,000–50,000. Together they are called core-based statistical areas (CBSAs).