Blaine County is a county located in the U.S. state of Montana. As of the most recent data available, the county has a population of approximately 7,009 people, with a population density of about 1.66 persons per square mile.
The county spans a total land area of 4,226.00 square miles (10,945.00 square kilometers). The administrative center and county seat is Chinook, which often serves as a hub for local governance and services. The largest city within the county by population is Fort Belknap.
Geographically, Blaine County experiences varied elevations, with its highest point at Fort Belknap Agency 3,972 ft and its lowest point at Fort Belknap 0 ft. The region operates in the UTC-7.