Custer, Montana Custer, Montana Custer is a census-designated place (CDP) in Yellowstone County, Montana, United States. The population was 145 at the 2000 census. This community bears the name of U.S. Army General George Armstrong Custer who was defeated and killed at the Battle of Little Big Horn, which took place nearby in 1876. Custer is located at (46.128870, -107.556302). According to the United States Census Bureau, the CDP has a total area of , all of it land. According to the Köppen Climate Classification system, Custer has a semi-arid climate, abbreviated "BSk" on climate maps. As of the census of 2000,
George Armstrong Custer George Armstrong Custer Custer developed a strong reputation during the Civil War. He participated in the first major engagement, the First Battle of Bull Run on July 21, 1861, near Washington, D.C. His association with several important officers helped his career as did his success as a highly effective cavalry commander. Custer was brevetted to brigadier general at age 23, less than a week before the Battle of Gettysburg, where he personally led cavalry charges that prevented Confederate cavalry from attacking the Union rear in support of Pickett's Charge. He was wounded in the Battle of Culpeper Court House in