The city of Cook was known initially as Little Fork, because of the river of the same name that runs through the city, later being known as Ashawa, which stands for "by the river or across the river"; however its name was changed to its current name on August 1, 1908; at the request of the U.S. Postal Service "because confusion with a village in southern Minnesota named Oshawa". The town was named in honor of Wirth Cook, an owner of the railroad that was constructed through Cook in 1903 and 1904. Cook was incorporated on May 13, 1926.
As of the census of 2010, there were 574 people, 268 households, and 134 families living in the city. The population density was. There were 306 housing units at an average density of. The racial makeup of the city was 92.0% White, 0.2% African American, 4.9% Native American, 0.2% Pacific Islander, 0.3% from other races, and 2.4% from two or more races. Hispanic or Latino of any race were 0.9% of the population. There were 268 households, of which 23.1% had children under the age of 18 living with them, 38.1% were married couplesliving together, 10.4% had a female householder with no husband present, 1.5% had a male householder with no wife present, and 50.0% were non-families. 43.3% of all households were made up of individuals, and 20.9% had someone living alone who was 65 years of age or older. The average household size was 2.04 and the average family size was 2.84. The median age in the city was 47 years. 19.5% of residents were under the age of 18; 6.6% were between the ages of 18 and 24; 22.3% were from 25 to 44; 28.5% were from 45 to 64; and 23% were 65 years of age or older. The gender makeup of the city was 47.6% male and 52.4% female.
As of the 2000 census, there were 622 people, 275 households, and 158 families living in the city. The population density was 790.1 people per square mile. There were 302 housing units at an average density of 383.6 per square mile. The racial makeup of the city was 96.78% White, 0.16% African American, 1.61% Native American, 0.80% from other races, and 0.64% from two or more races. Hispanic or Latino of any race were 0.64% of the population. 20.3% were of Norwegian, 16.7% Finnish, 13.9% German, 12.7% Swedish, 6.6% American and 4.9% Irish ancestry. There were 275 households, out of which 27.3% had children under the age of 18 living with them, 38.9% were married couples living together, 13.1% had a female householder with no husband present, and 42.5% were non-families. 39.3% of all households were made up of individuals, and 24.4% had someone living alone who was 65 years of age or older. The average household size was 2.11 and the average family size was 2.82. In the city, the population was spread out, with 21.5% under the age of 18, 8.0% from 18 to 24, 24.1% from 25 to 44, 19.8% from 45 to 64, and 26.5% who were 65 years of age or older. The median age was 42 years. For every 100 females, there were 80.8 males. For every 100 females age 18 and over, there were 80.1 males. The median income for a household in the city was $21,607, and the median income for a family was $34,643. Males had a median income of $30,833 versus $22,232 for females. The per capita income for the city was $15,848. About 9.5% of families and 13.0% of the population were below the poverty line, including 18.8% of those under age 18 and 9.2% of those age 65 or over.
Infrastructure
Transportation
and State Highway 1 are two of the main routes in Cook.
Education
North Woods School serves the Cook area. The mascot is the Grizzly.
