Montana's at-large congressional district


is represented in the United States House of Representatives by one at-large congressional district, among the 435 in the United States Congress. The district is the largest U.S. congressional district by population with just over 1 million constituents. It is also the second-largest by land area, after Alaska's at-large congressional district, and the largest by land area in the contiguous United States.
Since June 21, 2017, the district has been represented by Republican Greg Gianforte. Gianforte won a special election earlier in 2017 to replace Ryan Zinke, who had resigned to become U.S. Secretary of the Interior. Gianforte will not seek reelection in 2020, instead opting to run for Governor of Montana.

Politics

won Montana in the 2004 presidential election with 59.1% of the vote, beating John Kerry by 20 percentage points, which indicates that the district leans Republican. However, four years later John McCain won the state by only 2.5% over Barack Obama, and there is a significant Democratic presence in the state: as of 2019 the Governor's office, Lieutenant Governor's office and one U.S. Senate seat are controlled by the Democrats, which suggested at the time that the district could be competitive in future elections. In 2016, Donald Trump won by over 20%, while Ryan Zinke won Montana's single congressional seat by over 16%. Incumbent Democratic Governor Steve Bullock, however, was also reelected by 4%. The seat was left vacant when Zinke was appointed Secretary of the Interior. In a special election held on May 25, 2017, Republican Greg Gianforte won with a margin of 6% and would be reelected by a margin of 5% in 2018.

Early at-large district

From statehood in 1889, until the creation of geographic districts in 1919, Montana was represented in the United States House of Representatives by members elected at-large, that is, requiring voting by all the state population. From 1913 to 1919, there were two seats, still elected at-large; the top two finishers were awarded the seats. After that time, two representatives were elected from two geographic districts of roughly equal population, from the east and the west of the state.
In the reapportionment following the 1990 census, Montana lost one of its two seats. Its remaining member was again elected at-large.

Recent voting history

Election results from presidential races are shown below.

List of members representing the district

1889–1919: One, then two seats

The two at-large seats were moved to district representation in 1919, and remained until 1993, when Montana lost a seat due to redistricting from the 1990 US Census, Re-establishing the single seat at-large district.

1993–present: One seat

Recent election results

The following are official results from the general elections.