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County · code 27031

Cook CountyMinnesota

Cook County is a county in northeastern Minnesota, with its seat in Grand Marais. It was created in 1874 from Lake County and St. Louis County.

  • Founded1874
  • County seatGrand Marais
  • Land area1,453 sq mi + 1,887 sq mi water
  • Population5,600 2020 Census
  • Parcels mapped12,604 checked 15 October 2026
Open the free map Click any parcel in Cook County: acreage, parcel id, address and who publishes the map. No sign-in.

Updated

Ashland, WILakeOntonagon, MIKeweenaw, MI Grand Marais Census outline · seat marked

Where it is

Cook on the map of Minnesota

Minnesota has 87 counties and county equivalents, each with its own records office. Shapes with a page are links.

Aitkin CountyAnoka CountyBecker CountyBeltrami CountyBenton CountyBig Stone CountyBlue Earth CountyBrown CountyCarlton CountyCarver CountyCass CountyChippewa CountyChisago CountyClay CountyClearwater CountyCottonwood CountyCrow Wing CountyDakota CountyDodge CountyDouglas CountyFaribault CountyFillmore CountyFreeborn CountyGoodhue CountyGrant CountyHennepin CountyHouston CountyHubbard CountyIsanti CountyItasca CountyJackson CountyKanabec CountyKandiyohi CountyKittson CountyKoochiching CountyLac qui Parle CountyLake CountyLake of the Woods CountyLe Sueur CountyLincoln CountyLyon CountyMcLeod CountyMahnomen CountyMarshall CountyMartin CountyMeeker CountyMille Lacs CountyMorrison CountyMower CountyMurray CountyNicollet CountyNobles CountyNorman CountyOlmsted CountyOtter Tail CountyPennington CountyPine CountyPipestone CountyPolk CountyPope CountyRamsey CountyRed Lake CountyRedwood CountyRenville CountyRice CountyRock CountyRoseau CountySt. Louis CountyScott CountySherburne CountySibley CountyStearns CountySteele CountyStevens CountySwift CountyTodd CountyTraverse CountyWabasha CountyWadena CountyWaseca CountyWashington CountyWatonwan CountyWilkin CountyWinona CountyWright CountyYellow Medicine CountyCook County Cook
Counties of Minnesota · Cook highlighted

History

Formed in 1874 from Lake County and St. Louis County

An old deed may name a county that no longer exists, or a boundary that has since moved.

Cook County was created on November 3, 1874, from Lake County and St. Louis County, and was initially organized for county government while attached to St. Louis County for judicial purposes. In 1891, Cook County was detached from St. Louis County and attached to Lake County for judicial purposes. Cook County became fully organized and independent on January 1, 1901, when it was detached from Lake County.

Boundary changes from the Newberry Library, Atlas of Historical County Boundaries.

  1. 1874
    Cook County created Cook created from Lake; Cook organized for county government, attached to St. Louis "for judicial purposes."
    from Lakefrom St. Louis
    · Minn. Laws 1874, gen., ch. 100, secs. 1-3, 11/pp. 242-245
  2. 1883
    Changed Cook's organization for county government confirmed. · Minn. Laws 1883, gen., ch. 93, secs. 1-2/pp. 121-122
  3. 1891
    Changed Cook detached from St. Louis, attached to Lake "for judicial purposes." (Cook remained indirectly attached to St. Louis, through Lake, until 27 February 1891).
    St. LouisLake
    · Minn. Laws 1891, gen., ch. 138, sec. 1/p. 230
  4. 1901
    Changed Cook fully organized, detached from Lake.
    Lake
    · Minn. Laws 1899, gen., ch. 108, sec. 1/pp. 113-114

Land and parcels

What the maps cover in Cook

Who publishes each layer, how good it is, and when we last checked.

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

Cook by the Census

Population
5,600 2020 Census count
Housing units
5,936 2020 Census count
Land area
1,453 square miles
Water area
1,887 square miles · 57% of the county, including large bodies of water
People per sq mi
4 population ÷ land area

Source: US Census Bureau, 2020 Census; US Census Bureau, 2020 Gazetteer Files. Not endorsed or certified by the Census Bureau.

Rules and offices

Cook County's official site

We have found the county's site but not its offices yet; start there.

County government

See your own lot on these maps

Open Cook 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.

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Questions

Common questions about Cook County

When was Cook County founded?
Cook County was founded in 1874, formed from Lake County and St. Louis County.
What is the county seat of Cook County?
The county seat of Cook County is Grand Marais.
Is there an online parcel map for Cook County?
Yes. A public source publishes a parcel map of 12,604 parcels, rated fallback here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
Has Cook County's boundary or name changed?
Cook County was created in 1874 from Lake County and St. Louis County. Since then the Atlas of Historical County Boundaries records 3 later changes, chiefly involving Lake County and St. Louis County.
Is my lot in a flood zone?
We do not have flood maps for Cook County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.

Nearby

Counties next door