Blaine County Montana


Top Departments

Health Department


Clerk & Recorder

Sheriff & Coroner


About Blaine County

Blaine County is located in north-central Montana, and has a land area of about 2,730,880 acres or 4,267 square miles. Blaine County is bounded by Hill County and Chouteau County on the west, Phillips County on the east, Fergus County on the south and the province of Saskatchewan, Canada on the North.

Elevations in Blaine County, Montana range from about 2,300 feet above mean sea level along the Milk River to about 6,000 feet in the Little Rocky Mountains in the extreme southeastern portion. The Bears Paw Mountains make up the southwestern portion of the county. Extending from the east to the west, the Milk River runs through the north-central section.

Chinook is the county seat and incorporated towns include Chinook and Harlem. The Missouri River forms the southern boundary. The Fort Belknap Indian Reservation consisting of the Gros Ventre and Assiniboine Tribes, occupies an area within the southwestern portion of Blaine County.



Get Answers to Your Questions


Our Office

Blaine County Courthouse
420 Ohio St
Chinook, MT 59523

Office Hours

Mon-Fri: 8am - 5pm
Sat-Sun: Closed