Martin City is an unincorporated community and census-designated place (CDP) in Flathead County, Montana, United States.

Martin City owes its existence to the early 1950s construction of the Hungry Horse Dam.

[4] Martin City is located in central Flathead County between Hungry Horse to the southwest and Coram to the north.

[3] Martin City is located on the east side of the Flathead River.

28.9% of all households were made up of individuals, and 9.2% had someone living alone who was 65 years of age or older.