County Maps US

Polk County, Minnesota

A county in Minnesota, ranked 35 of 87 by population.

CountyFIPS 27119

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

Download SVGFull Minnesota map downloads

Population
30,545
-554 (-1.8%) since 2020
Land area
1,971
square miles. A further 1.3% of the total area is water
Population density
15.5
people per square mile, computed rather than published
County seat
Crookston
Seat of county government.
Established
1858
167 years ago
Largest city
East Grand Forks city
Population 8,906.

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 Polk 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 Polk 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 537 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 Polk 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
Population30,54535th of 871,428th of 3,144
Land area1,971 sq mi8th of 87290th of 3,144
Population density15.5 per sq mi63rd of 872,378th of 3,144
Median household income$73,10747th of 87962nd of 3,143

Full data for Polk County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population30,545Vintage 2025 Population Estimates
Population in 202031,099Vintage 2025 Population Estimates
2020 estimates base?31,203Vintage 2025 Population Estimates
Land area1,971 sq mi2025 Gazetteer Files
Water area26.8 sq mi2025 Gazetteer Files
Total area1,998 sq mi2025 Gazetteer Files
Population density?15.5 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$73,107American Community Survey 2020-2024 5-Year Estimates
Median home value$222,800American Community Survey 2020-2024 5-Year Estimates
Median age39.8American Community Survey 2020-2024 5-Year Estimates
Households12,360American Community Survey 2020-2024 5-Year Estimates
Housing units14,697American 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
-14
338 births, 352 deaths
Net migration
-125
More people moved out than moved in.

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

The 8 areas bordering Polk 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
Red Lake CountyMinnesota62 mi3,940
Grand Forks CountyNorth Dakota56 mi74,501
Norman CountyMinnesota37 mi6,336
Clearwater CountyMinnesota31 mi8,647
Marshall CountyMinnesota30 mi8,798
Traill CountyNorth Dakota24 mi7,920
Mahnomen CountyMinnesota24 mi5,153
Pennington CountyMinnesota21 mi13,686

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.