Welcome to Rosebud County

Rosebud County was established on February 1, 1901 and is located in Southeastern Montana covering approximately 5,027 square miles (5,010 square miles is land and 17 square miles is water). The county Courthouse began construction in Forsyth in 1912, for more history on our Courthouse visit our Resource page. Rosebud County is Montana’s twenty-second most populous county, with an estimated population of 8,329 as of the latest census in 2020.

Other cities and towns in Rosebud County include Angela, Ashland, Birney, Colstrip, Hathaway, Ingomar, Lame Deer, Rosebud, and Sumatra. A large portion of the Northern Cheyenne Indian Reservation lies within Rosebud County.

  • Rosebud County is the fourth largest County by land area in the State of Montana.
  • Topography of Rosebud County is mostly rolling with small hills.  Elevations range from 2,441 feet above sea level near Hathaway to 4,807 feet above sea level in the Little Wolf Mountains west of Colstrip.
  • The County’s leading source of income are from agriculture, tourism, railroad, coal mining and electrical generation.
  • There are 1,165 miles of County road.
  • Medical facilities are located in Ashland, Lame Deer, Colstrip and Forsyth.
47.19 ° Forsyth, MT
courthouse

News

Public Notice

Rosebud County was successful in obtaining a MT Department of Commerce Planning Grant to assist with the preparation of a Preliminary Engineering Report (PER) to evaluate the replacement of the existing bridge on Lee Creek Road over Hanging Woman Creek located approximately 4.7 miles southeast of Birney, MT. The County is interested in receiving comments from the public is regards to the potential project. Please submit any comments about the project to the Rosebud County Commissioners at 1251 Main St. #2, Forsyth, MT 59327. The public comment period will remain open until the formal public hearing on May 5, 2026. Formal advertisements for the public hearing will follow.

NOTICE: Taxes Due

NOTICE OF 2025 2nd Half of REAL PROPERTY Taxes And 1st Half of 2026 MOBILE HOME taxes DUE 06/01/26 As Per MCA 15-16-101 Notice is here by given that the 2nd half Real Property Taxes and 1st half 2025 Mobile home Taxes will be due and payable before 5 p.m. on June 1st 2026. Unless paid ON or PRIOR to that time, the amount then due will be delinquent and will draw interest at the rate of 5/6 of 1% a month from the time of delinquency until paid and 2% will be added to the delinquent taxes as a penalty. More


Upcoming Events

MEMORIAL DAY – HOLIDAY

 May 25, 2026

INDEPENDENCE DAY – Holiday

 July 3, 2026

LABOR DAY – Holiday

 September 7, 2026

 

 

 

 

 

Rosebud County
1251 Main Street
Forsyth, MT 59327

Rosebud County