Fallon County is a county located in the state of Montana. Based on the 2010 census, the population was 2,890. Its county seat is Baker. The county was created in 1913 after being carved out of Custer County. The name comes from Benjamin O'Fallon, a nephew of Captain William Clark and an Indian agent for the upper Missouri region from 1823 to 1827
Benjamin O'Fallon, a Federal Native American agent
County QuickFacts: CensusBureau Quick Facts
All of SoutheasterFallon County was created 9 December 1913 from Custer County. County seat: Baker
n Montana was Custer County in those early days. In 1913, effort was being made to have the large counties broken into smaller units. The fight was hot and heavy with rallies in every precinct featuring free dances where liquor flowed freely. Each proposed county attempted to get the largest possible area. Wibaux to the north was the roughest competitor in that respect, but Ekalaka was Baker's rival for the county seat of this southeast section. Ekalaka won, but the following year, on re-election, Baker became the seat of Fallon County. In 1917, Ekalaka pulled away and formed its own county of Carter.
As reported by the Census Bureau, the county has a total area of 1,623 square miles (4,204 km2), of which,
1,620 square miles (4,197 km2) of it is land and 3 square miles (7 km2) of it (0.17%) is water.
Bordering counties are as follows: