Coleraine is a city in Itasca County, Minnesota, United States, near Grand Rapids.

[3] The community was named after Thomas F. Cole, President of the Oliver Iron Mining Company.

[4] The city was named for Thomas F. Cole, a businessperson in the mining industry.

[6] The community of Gunn is located within the southern portion of the city of Coleraine.

There were 831 housing units at an average density of 51.5 per square mile (19.9/km2).

22.9% of all households were made up of individuals, and 8.7% had someone living alone who was 65 years of age or older.

23.9% of all households were made up of individuals, and 13.5% had someone living alone who was 65 years of age or older.