Custer County Mt, As of the 2020 U. A mix of the charming, modern, and tried and true. A special area of information and links helpful to the current and future residents of Custer County Montana. 18 Bauwerke und Stätten des Countys sind im National Register of Historic Places eingetragen (Stand 7. Check Where is Custer County Located, largest cities, Jason Strouf – EMAIL (406) 874-3352 Commissioner District #2 Jeff Faycosh – EMAIL (406) 874-3350 Commissioner District #3 Explore the Map of Custer County, Montana for free download. As of the 2020 census, there were 11,867 people. Its county seat and largest town is Miles City. The county’s named after General Custer, Places to see, ways to wander, and signature experiences. Custer County, Montana (MT) County population in 2024: 12,179 (78% urban, 22% rural); it was 11,696 in 2000 County owner . Learn about Custer County, a great place to live, visit and do business in southeastern Montana.