Missouri's 3rd congressional district

Missouri's third congressional district is in the eastern and central portion of the state. It stretches from the southern part of Columbia (including the University of Missouri) and the state capital of Jefferson City in the west to St. Charles County (including the large suburbs of St. Charles, St. Peters and Wentzville) and western Jefferson County in the east. The district took its current form in 2023, when Cooper and parts of Boone counties were added to the district, while Franklin and most of Warren counties were instead drawn into the 2nd district, and much of Lincoln County moved to the 6th district. Its current representative is Republican Bob Onder.

The Columbia portion in the 3rd includes the University of Missouri. The northern portion of the city is in the 4th district.

From 1953 to 2013, the 3rd had been located in the southern portion of the St. Louis area, including the southern third of St. Louis City, and had a dramatically different political history from the current 3rd. Its best-known congressman is Dick Gephardt, who represented the district for 28 years until his retirement from Congress.

Following a dramatic drop in the population of St. Louis in the 2010 United States census, Missouri lost a congressional seat effective in 2013. Redistricting maps indicated that the 3rd district would be dismantled. The 3rd's home base in St. Louis would be absorbed by Missouri's 1st congressional district. Much of the district outside the St. Louis area would be drawn into the 8th district. Meanwhile, the new 3rd included most of the territory currently in the 9th district, which was dissolved.

Recent election results from statewide races Year Office Results2008 PresidentMcCain 55% - 44%2012 PresidentRomney 62% - 38%2016 PresidentTrump 63% - 32% SenateBlunt 53% - 42% GovernorGreitens 54% - 42% Lt. GovernorParson 56% - 39% Secretary of StateAshcroft 62% - 34% Attorney GeneralHawley 64% - 36%2018 SenateHawley 56% - 41% AuditorGalloway 48% - 46%2020 PresidentTrump 62% - 36% GovernorParson 62% - 35% Lt. GovernorKehoe 65% - 32% Secretary of StateAshcroft 66% - 31% TreasurerFitzpatrick 65% - 32% Attorney GeneralSchmitt 65% - 32%2022 SenateSchmitt 59% - 38%2024 PresidentTrump 63% - 36% SenateHawley 59% - 39% GovernorKehoe 64% - 33% Lt. GovernorWasinger 62% - 34% Secretary of StateHoskins 62% - 36% TreasurerMalek 62% - 33% Attorney GeneralBailey 64% - 33%

Composition For the 118th and successive Congresses (based on redistricting following the 2020 census), the district contains all or portions of the following counties and communities:https://www2.census.gov/geo/maps/cong_dist/cd118/cd_based/ST29/CD118_MO03.pdf

Boone County (7)

Ashland, Columbia (part; also 4th), Hartsburg, Huntsdale, McBaine, Pierpont, Rocheport

Callaway County (8)

All 8 communities

Camden County (4)

Lake Ozark (shared with Miller County), Osage Beach (part; also 4th), Sunrise Beach (part; also 4th), Village of Four Seasons

Cole County (8)

All 8 communities

Cooper County (8)

All 8 communities

Crawford County (9)

All 9 communities

Gasconade County (6)

All 6 communities

Jefferson County (14)

Briarwood Estates, Byrnes Mill, Cedar Hill, Cedar Hill Lakes, De Soto, Eureka (part; also 2nd; shared with St. Louis County), High Ridge, Hillsboro, LaBarque Creek, Lake Tekakwitha, Parkdale, Peaceful Village, Raintree Plantation, Scotsdale

Maries County (3)

All 3 communities

Miller County (10)

All 10 communities

Moniteau County (5)

All 5 communities

Montgomery County (11)

All 11 communities

Osage County (8)

All 8 communities

St. Charles County (13)

Cottleville, Flint Hill, Foristell (part; also 2nd; shared with Warren County), Josephville, Lake St. Louis (part; also 2nd), O'Fallon (part; also 2nd), Portage Des Sioux, St. Charles, St. Paul, St. Peters, Weldon Spring (part; also 2nd), Wentzville (part; also 2nd), West Alton

Warren County (13)

Foristell (part; also 2nd; shared with St. Charles County), Warrenton (part; also 2nd), Wright City (part; also 2nd)

Washington County (5)

All 5 communities

List of members representing the district Member Party Years Congress Electoral history District location District created March 4, 1847 James S. Green Democratic March 4, 1847 –March 3, 1851 Elected in 1846.Re-elected in 1848.Retired. John G. Miller Whig March 4, 1851 –March 3, 1853 Elected in 1850.Redistricted to the . James J. Lindley Whig March 4, 1853 –March 3, 1855 Elected in 1852.Re-elected in 1854.Retired. Opposition March 4, 1855 –March 3, 1857 Vacant March 4, 1857 –December 7, 1857 John B. Clark Democratic December 7, 1857 –July 13, 1861 Elected after James S. Green was elected to US Senate prior to being seated.Re-elected in 1858.Re-elected in 1860.Expelled after taking up arms against the Union. Vacant July 13, 1861 –January 20, 1862 William A. Hall Democratic January 20, 1862 –March 3, 1863 Elected to finish Clark's term.Redistricted to the . John W. Noell Unconditional Unionist March 4, 1863 –March 14, 1863 Redistricted from the and Re-elected in 1862.Died. Vacant March 14, 1863 –December 7, 1863 John G. Scott Democratic December 7, 1863 –March 3, 1865 Elected to finish Noell's term.Retired. Thomas E. Noell Republican March 4, 1865 –March 3, 1867 Elected in 1864.Re-elected in 1866.Died. Democratic March 4, 1867 –October 3, 1867 Vacant October 3, 1867 –December 17, 1867 James R. McCormick Democratic December 17, 1867 –March 3, 1873 Elected to finish Noell's term.Re-elected in 1868.Re-elected in 1870.Retired. William H. Stone Democratic March 4, 1873 –March 3, 1877 Elected in 1872.Re-elected in 1874.Retired. Lyne Metcalfe Republican March 4, 1877 –March 3, 1879 Elected in 1876.Lost re-election. Richard G. Frost Democratic March 4, 1879 –March 2, 1883 Elected in 1878.Re-elected in 1880.Retired but lost contested election before next term began. Gustavus Sessinghaus Republican March 2, 1883 –March 3, 1883 Won contested election.Lost re-election. Alexander M. Dockery Democratic March 4, 1883 –March 3, 1899 Elected in 1882.Re-elected in 1884.Re-elected in 1886.Re-elected in 1888.Re-elected in 1890.Re-elected in 1892.Re-elected in 1894.Re-elected in 1896.Retired to run for governor. John Dougherty Democratic March 4, 1899 –March 3, 1905 Elected in 1898.Re-elected in 1900.Re-elected in 1902.Lost renomination. Frank B. Klepper Republican March 4, 1905 –March 3, 1907 Elected in 1904.Lost re-election. Joshua W. Alexander Democratic March 4, 1907 –December 15, 1919 Elected in 1906.Re-elected in 1908.Re-elected in 1910.Re-elected in 1912.Re-elected in 1914.Re-elected in 1916.Re-elected in 1918.Resigned when appointed US Secretary of Commerce Vacant December 15, 1919 –February 14, 1920 Jacob L. Milligan Democratic February 14, 1920 –March 3, 1921 Elected to finish Alexander's term.Lost re-election. Henry F. Lawrence Republican March 4, 1921 –March 3, 1923 Elected in 1920.Lost re-election. Jacob L. Milligan Democratic March 4, 1923 –March 3, 1933 Elected in 1922.Re-elected in 1924.Re-elected in 1926.Re-elected in 1928.Re-elected in 1930.Redistricted to the . District inactive March 4, 1933 –January 3, 1935 All representatives elected on a general ticket. Richard M. Duncan Democratic January 3, 1935 –January 3, 1943 Redistricted from the and re-elected in 1934.Re-elected in 1936.Re-elected in 1938.Re-elected in 1940.Lost re-election. William C. Cole Republican January 3, 1943 –January 3, 1949 Elected in 1942.Re-elected in 1944.Re-elected in 1946.Lost re-election. Phil J. Welch Democratic January 3, 1949 –January 3, 1953 Elected in 1948.Re-elected in 1950.Retired to run for governor. Leonor Sullivan Democratic January 3, 1953 –January 3, 1977 Elected in 1952.Re-elected in 1954.Re-elected in 1956.Re-elected in 1958.Re-elected in 1960.Re-elected in 1962.Re-elected in 1964.Re-elected in 1966.Re-elected in 1968.Re-elected in 1970.Re-elected in 1972.Re-elected in 1974.Retired. 1953–1963 1963–1973 1973–1983 Dick Gephardt Democratic January 3, 1977 –January 3, 2005 Elected in 1976.Re-elected in 1978.Re-elected in 1980.Re-elected in 1982.Re-elected in 1984.Re-elected in 1986.Re-elected in 1988.Re-elected in 1990.Re-elected in 1992.Re-elected in 1994.Re-elected in 1996.Re-elected in 1998.Re-elected in 2000.Re-elected in 2002.Retired to run for Democratic nominee for president. 1983–1993 1993–2003 2003–2013 Russ Carnahan Democratic January 3, 2005 –January 3, 2013 Elected in 2004.Re-elected in 2006.Re-elected in 2008.Re-elected in 2010.Redistricted to the and lost renomination. Blaine Luetkemeyer Republican January 3, 2013 –January 3, 2025 Redistricted from the and re-elected in 2012.Re-elected in 2014.Re-elected in 2016.Re-elected in 2018.Re-elected in 2020.Re-elected in 2022.Retired. 2013–2023 2023–presentBob Onder RepublicanJanuary 3, 2025 –presentElected in 2024.

Recent election results

2012

2014

2016

2018

2020

2022

2024

Missouri's 3rd congressional district

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