Trimont is a city in Martin County, Minnesota, USA. The population was 747 at the 2010 census. The U.S. Census Bureau estimated 2011 population is 740. The small community is located in south central Minnesota between Sherburn and St. James on Minnesota State Highway 4. Interstate 90 is nearby.Trimont was once two different towns, platted by competing railroads. The two towns were Triumph, to the east, and Monterey to the west.