Idaho's 2nd congressional district is one of two congressional districts in the U.S. state of Idaho, in the eastern portion of the state. Beginning with the 2012 election, the district expanded westward and now includes most of Boise, the state capital and largest city. The district is currently represented by Mike Simpson, a Republican of Idaho Falls. A former dentist in Blackfoot, he was first elected in 1998; the seat opened when his predecessor Mike Crapo successfully ran for the U.S. Senate.

History After statehood in 1890, Idaho had a single seat in Congress through the 1910 election, a statewide at-large seat. Following the 1910 census, Idaho gained its second seat in the House; it was first contested in 1912, but the state did not immediately apportion into two districts. Through the 1916 election, both were statewide at-large seats. The first election in Idaho with two congressional districts was in 1918.

The district has largely retained the same shape since the 1950s. Following the 2010 census and redistricting, the 2nd district was pushed slightly to the west, picking up much of northeast Ada County, including most of Boise. It now covers all of the capital north of Interstate 84. The 1st district had long been reckoned as "the Boise district", as it historically covered most of Boise. However, a significant increase in population directly west of Boise over the previous decade, in western Ada and Canyon counties, resulted in the 1st losing most of its share of the capital. The 1st continues to serve most of Boise's suburbs; in Ada County itself, it continues to include Meridian, Eagle, and west Boise, south of Interstate 84.

Other major cities in the 2nd district include Idaho Falls, Pocatello, Twin Falls, Rexburg, Hailey, and Sun Valley. The Church of Jesus Christ of Latter-day Saints has a strong presence in the district; a member of the LDS Church has represented this district continuously since 1951.

Recent election results from statewide races Year Office Results2008 PresidentMcCain 60% - 37%2012 PresidentRomney 66% - 34%2016 PresidentTrump 54% - 30% SenateCrapo 63% - 30%2018 GovernorLittle 56% - 42% Lt. GovernorMcGeachin 55% - 45% Attorney GeneralWasden 62% - 38%2020 PresidentTrump 60% - 37% SenateRisch 59% - 37%2022 SenateCrapo 57% - 34% GovernorLittle 60% - 24% Lt. GovernorBedke 60% - 36% Secretary of StateMcGrane 68% - 32% ControllerWoolf 65% - 32% TreasurerEllsworth 66% - 34% Attorney GeneralLabrador 56% - 44%2024 PresidentTrump 62% - 35%

Composition The 2nd district includes the entirety of the following counties, with the exception of Ada, which it shares with the 1st district. Ada County municipalities included within the 2nd district include Avimor, Hidden Springs, Garden City, and more than half of Boise. #CountySeatPopulation1AdaBoise524,6735BannockPocatello90,4007Bear LakeParis6,76611BinghamBlackfoot50,39513BlaineHailey25,04119BonnevilleIdaho Falls131,36623ButteArco2,75825CamasFairfield1,23229CaribouSoda Springs7,21931CassiaBurley25,69633ClarkDubois80137CusterChallis4,53239ElmoreMountain Home29,72441FranklinPreston15,49443FremontSt. Anthony14,19647GoodingGooding16,06151JeffersonRigby34,19853JeromeJerome25,47959LehmiSalmon8,44163LincolnShoshone5,45065MadisonRexburg54,54767MinidokaRupert22,48071OneidaMalad City4,95377PowerAmerican Falls8,25381TetonDriggs12,54983Twin FallsTwin Falls95,156

List of members representing the district Representative Party Years Congress Electoral history District created March 4, 1919 Addison Smith Republican March 4, 1919 –March 3, 1933 Redistricted from the and re-elected in 1918.Re-elected in 1920.Re-elected in 1922.Re-elected in 1924.Re-elected in 1926.Re-elected in 1928.Re-elected in 1930.Lost re-election. Thomas Coffin Democratic March 4, 1933 –June 8, 1934 Elected in 1932.Died. Vacant June 6, 1934 –January 3, 1935 D. Worth Clark Democratic January 3, 1935 –January 3, 1939 Elected in 1934.Re-elected in 1936.Retired to run for U.S. Senator. Henry Dworshak Republican January 3, 1939 –November 5, 1946 Elected in 1938.Re-elected in 1940.Re-elected in 1942.Re-elected in 1944.Resigned when elected to U.S. Senate. Vacant November 5, 1946 –January 3, 1947 John Sanborn Republican January 3, 1947 –January 3, 1951 Elected in 1946.Re-elected in 1948.Retired to run for U.S. Senator. Hamer Budge Republican January 3, 1951 –January 3, 1961 Elected in 1950.Re-elected in 1952.Re-elected in 1954.Re-elected in 1956.Re-elected in 1958.Lost re-election. Ralph Harding Democratic January 3, 1961 –January 3, 1965 Elected in 1960.Re-elected in 1962.Lost re-election. George Hansen Republican January 3, 1965 –January 3, 1969 Elected in 1964.Re-elected in 1966.Retired to run for U.S. Senator. Orval Hansen Republican January 3, 1969 –January 3, 1975 Elected in 1968.Re-elected in 1970.Re-elected in 1972.Lost renomination. George Hansen Republican January 3, 1975 –January 3, 1985 Elected in 1974.Re-elected in 1976.Re-elected in 1978.Re-elected in 1980.Re-elected in 1982.Lost re-election. Richard Stallings Democratic January 3, 1985 –January 3, 1993 Elected in 1984.Re-elected in 1986.Re-elected in 1988.Re-elected in 1990.Retired to run for U.S. Senator. Mike Crapo Republican January 3, 1993 –January 3, 1999 Elected in 1992.Re-elected in 1994.Re-elected in 1996.Retired to run for U.S. Senator. Mike Simpson Republican January 3, 1999 –present Elected in 1998.Re-elected in 2000.Re-elected in 2002.Re-elected in 2004.Re-elected in 2006.Re-elected in 2008.Re-elected in 2010.Re-elected in 2012.Re-elected in 2014.Re-elected in 2016.Re-elected in 2018.Re-elected in 2020.Re-elected in 2022.Re-elected in 2024.

Election history

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Historical district boundaries

See also Idaho's congressional districts List of United States congressional districts

References

Congressional Biographical Directory of the United States 1774–present