Custer County, Montana

county in Montana, United States

Custer County is a county found in the U.S. state of Montana. As of the 2010 census, there were 11,699 people.[1] Its county seat is Miles City.[2] The county was formed in 1877[3] and named in honor of George Armstrong Custer.

Custer County
Custer County Courthouse in Miles City
Custer County Courthouse in Miles City
Map of Montana highlighting Custer County
Location within the U.S. state of Montana
Map of the United States highlighting Montana
Montana's location within the U.S.
Coordinates: 46°16′N 105°35′W / 46.27°N 105.58°W / 46.27; -105.58
Country United States
State Montana
FoundedFebruary 16, 1877
Named forGeorge Armstrong Custer
SeatMiles City
Largest cityMiles City
 • Total3,793 sq mi (9,820 km2)
 • Land3,783 sq mi (9,800 km2)
 • Water9.9 sq mi (26 km2)  0.3%%
 • Estimate 
 • Density3.1/sq mi (1.2/km2)
Time zoneUTC−7 (Mountain)
 • Summer (DST)UTC−6 (MDT)
Congressional districtAt-large


  1. "State & County QuickFacts". United States Census Bureau. Archived from the original on July 9, 2011. Retrieved September 14, 2013.
  2. "Find a County". National Association of Counties. Archived from the original on 2011-05-31. Retrieved 2011-06-07.
  3. "A Brief Custer County History". Custer County Montana. Archived from the original on October 28, 2014. Retrieved December 1, 2014.