County Maps US

Otter Tail County, Minnesota

A county in Minnesota, ranked 17 of 87 by population.

CountyFIPS 27111

Within Minnesota
Otter Tail County, highlighted, with the areas around it. Boundaries generalised from the 2025 Census cartographic boundary file; neighbour fills carry no data. The dot marks Fergus Falls, the county seat, located via the 2025 Census Gazetteer.

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Population
61,041
+943 (+1.6%) since 2020
Land area
1,972
square miles. A further 11.4% of the total area is water
Population density
31.0
people per square mile, computed rather than published
County seat
Fergus Falls
Seat of county government.
Established
1858
167 years ago
Largest city
Fergus Falls city
Population 14,246.

Sources: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026; US Census Bureau, Gazetteer Files, 2025 Gazetteer Files, released 10 September 2025; Wikidata (CC0), Wikidata. Retrieved 30 August 2026.

Satellite view

Aerial imagery of Otter Tail County with its boundary drawn on top. A map shows you the shape; this shows you what is inside it, and which side of the line a place falls on.

Aerial view of Otter Tail County, Minnesota from the USGS National Map, with its boundary outlined
Imagery: USGS National Map, USGS Imagery Only, public domain, requested from USGS by your browser when you reach this point on the page, at 800 by 644 pixels. The boundary is the 2025 Census cartographic boundary file, reprojected to Web Mercator to match the imagery. You can also open the USGS National Map viewer.

Where Otter Tail County ranks

Position among the 87 counties of Minnesota, and among all 3,144 US counties and county-equivalents. Computed from the figures on this page.

MeasureValueIn MinnesotaNationally
Population61,04117th of 87885th of 3,144
Land area1,972 sq mi7th of 87289th of 3,144
Population density31.0 per sq mi41st of 871,895th of 3,144
Median household income$72,25555th of 871,029th of 3,143

Full data for Otter Tail County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population61,041Vintage 2025 Population Estimates
Population in 202060,098Vintage 2025 Population Estimates
2020 estimates base?60,094Vintage 2025 Population Estimates
Land area1,972 sq mi2025 Gazetteer Files
Water area252.7 sq mi2025 Gazetteer Files
Total area2,224 sq mi2025 Gazetteer Files
Population density?31.0 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$72,255American Community Survey 2020-2024 5-Year Estimates
Median home value$273,000American Community Survey 2020-2024 5-Year Estimates
Median age46.2American Community Survey 2020-2024 5-Year Estimates
Households25,157American Community Survey 2020-2024 5-Year Estimates
Housing units36,698American Community Survey 2020-2024 5-Year Estimates

Sources: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026; US Census Bureau, Gazetteer Files, 2025 Gazetteer Files, released 10 September 2025; US Census Bureau, American Community Survey, American Community Survey 2020-2024 5-Year Estimates, released 29 January 2026. Population density is computed here, not published: it divides the Vintage 2025 population estimate by the 2025 Gazetteer land area, which are two different Census products. Retrieved 30 August 2026.

How the population changed

The Census Bureau publishes the components behind an estimate, not just the total. For the year to July 2025:

Births minus deaths
-191
574 births, 765 deaths
Net migration
+274
More people moved in than moved out.

Source: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026. Retrieved 30 August 2026.

The 7 areas bordering Otter Tail County

Ordered by the length of the border actually shared, which the Census Bureau publishes in its county adjacency file and which no other county reference presents.

Bordering areaStateShared borderPopulation
Becker CountyMinnesota48 mi35,497
Wilkin CountyMinnesota37 mi6,288
Douglas CountyMinnesota30 mi40,120
Wadena CountyMinnesota24 mi14,388
Grant CountyMinnesota24 mi6,085
Todd CountyMinnesota19 mi26,060
Clay CountyMinnesota11 mi67,734

Source: US Census Bureau, County Adjacency File, 2025 County Adjacency File, released 15 September 2025. Retrieved 30 August 2026.

All 87 counties of Minnesota

Open the interactive Minnesota county map, or jump straight to any of them.

Data on this page last rebuilt 30 August 2026. How these figures are produced.