County · code 27087
Mahnomen CountyMinnesota
Mahnomen County is a county in Minnesota, with its seat in Mahnomen. The county was formed on November 6, 1906.
- Founded1906
- County seatMahnomen
- Named forOjibwe
- Land area558 sq mi + 25 sq mi water
- Population5,411 2020 Census
- Parcels mapped6,222 checked 16 October 2026
Where it is
Mahnomen on the map of Minnesota
Minnesota has 87 counties and county equivalents, each with its own records office. Shapes with a page are links.
History
Formed in 1906 from Norman County
An old deed may name a county that no longer exists, or a boundary that has since moved.
Mahnomen County was created from Norman County and fully organized on November 6, 1906. The county is named after the Ojibwe people.
- 1906Mahnomen County created Mahnomen created from Norman, fully organized. · Minn. Laws 1907, gen., gov. proc., pp. vi-viii
Land and parcels
What the maps cover in Mahnomen
Who publishes each layer, how good it is, and when we last checked.
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Parcels Good enough
Lot lines and tax-map numbers for 6,222 parcels. Drawn for tax purposes: usually within a few feet of a survey, but not a survey.
edited 10 July 2026 · checked 16 October 2026 -
Address points Missing
No public address points layer found for Mahnomen County yet.
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Buildings Reference
Roof outlines traced from aerial imagery from FEMA Response Geospatial Office with Oak Ridge National Laboratory (ORNL). Good for seeing what is on a lot; not accurate enough to set a fence from.
checked 18 October 2026
- Official
- from the office that keeps the record
- Good enough
- a reliable statewide or national copy
- Fallback
- a guide only; check the official record
- Missing
- nothing public found yet
People and land
Mahnomen by the Census
Source: US Census Bureau, 2020 Census; US Census Bureau, 2020 Gazetteer Files. Not endorsed or certified by the Census Bureau.
Rules and offices
Who to ask before you build, dig or sell
Official county pages only. We link to them; we do not copy them, because they change.
Inside a city or town, permits usually come from that city rather than the county.
Zoning and code
County government
- County government
The official website of Mahnomen County.
See your own lot on these maps
Open Mahnomen County on Parcel Chart's free map and click your parcel. Save it with a free account; the full record of your place (site map, projects, documents) is Pro, in early access.
Questions
Common questions about Mahnomen County
- When was Mahnomen County founded?
- Mahnomen County was founded in 1906, formed from Norman County, and named after Ojibwe.
- What is the county seat of Mahnomen County?
- The county seat of Mahnomen County is Mahnomen.
- Is there an online parcel map for Mahnomen County?
- Yes. A public source publishes a parcel map of 6,222 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
- Has Mahnomen County's boundary or name changed?
- Mahnomen County was created in 1906 from Norman County. The Atlas of Historical County Boundaries records no boundary change since.
- Is my lot in a flood zone?
- We do not have flood maps for Mahnomen County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.
Nearby