Interactive map version
Montana has two congressional districts. A state since 1889, it gained its second seat in the U.S. House for the 1912 election. Both seats were at-large selections on the ballot (entire state) for three elections, until the two districts were established prior to the 1918 election. The two districts were eliminated and the at-large district re-established from the 1992 until the 2020 elections, when it was again eliminated in favor of two districts after the 2020 census.
