Missouri's 3rd Senate district

Missouri's 3rd Senatorial District is one of 34 districts in the Missouri Senate. The district has been represented by Republican Elaine Gannon since 2021.

Geography
The district includes southwestern portions of the St. Louis Metropolitan Area and includes the counties of Crawford, St. Francois, Ste. Genevieve, Washington, and southern Jefferson County. Major municipalities in the district include Bloomsdale, Bonne Terre, Cuba, De Soto, Farmington, and Park Hills. The district also includes a portion of Mark Twain National Forest.