About Us

Tongue River CanyonWelcome to Big Horn County, the sixth-largest county in Montana, at approximately 5,023 square miles, and with a population exceeding 13,000. The local government was established on January 13, 1913. Hardin is the County Seat.

Big Horn County is a land made up of varying jurisdictions. As you drive across the Crow and Northern Cheyenne Indian Nations, be aware that each has its own unique regulations and law enforcement agencies. The National Park Service maintains jurisdiction at Little Bighorn Battlefield and the Big Horn Canyon National Recreation Area.

The scenic Big Horn, Pryor, and Wolf Mountain ranges are part of the Big Horn County landscape. Visitors may want to enjoy fishing the Big Horn, Little Big Horn, and Tongue Rivers which wind through this region. The spectacular Big Horn Canyon National Recreation Area is host to water sports including boating, water skiing, and more. Chief Plenty Coups State Park, at Pryor, contains much history of the Crow Indians.

Among the primary attractions within Big Horn County is the Little Bighorn Battlefield, the site of the defeat of Lt. Colonel George Custer and the 7th Calvary by a combined force of Sioux and Cheyenne warriors in 1876. Annual re-enactments of the battle occur each June. In August, Crow Agency, capital of the Crow Nation, hosts Crow Fair when the landscape is transformed by the addition of over 1,000 pitched teepees and thousands of people gathering for traditional dances, drumming, and other events.

Big Horn County is rich in culture and time-honored traditions. Enjoy Big Horn County and contact us, if we can be of assistance.

Mission Statement

The mission of Big Horn County is to maintain accessibility, accountability, efficiency, and a sense of community, within the various functions of County government, while safeguarding the liberties of our citizens.

Big Horn County CourthouseBig Horn County Courthouse

The Big Horn County Courthouse is located at 121 W 3rd, in Hardin, Montana. The Commissioner's offices are on the third floor. The Second-floor houses the Clerk and Recorder's Office, which maintains vital statistics and deed filings; along with the Treasurer's Office, handling motor vehicle registrations, driver's licenses applications, and fees, and taxes; the Election Officer and the Superintendent of Schools. Other offices on the second floor include the County Attorney, Justice of the Peace, and District Court. The County DESCOOR is located on the first floor. The Sheriff's Office has a separate entrance, in the alleyway on the east side of the building. State agencies currently housed in the Courthouse include the Department of Revenue, Adult and Juvenile Probation.


Visitors may enjoy the Big Horn County Museum and Visitor Center at I-90 Exit 497 and the Big Horn County Library at 419 N Custer, which provides free Internet wireless access. The Big Horn County Council on Aging, located at 317 N Custer in downtown Hardin, provides service to Senior Citizens. The Big Horn County Public Health Department is located at 809 North Custer. The Big Horn County Road Department/Rural Fire Department is located at 15 East 8th Street.