1940 United States presidential election in South Dakota

1940 United States presidential election in South Dakota

← 1936 November 5, 1940[1] 1944 →
All 4 South Dakota votes to the Electoral College
Nominee Wendell Willkie Franklin D. Roosevelt Party Republican Democratic Home state New York New York Running mate Charles L. McNary Henry A. Wallace Electoral vote 4 0 Popular vote 177,065 131,362 Percentage 57.41% 42.59%
County Results Willkie   50-60%   60-70%   70-80%   80-90% Roosevelt   50-60%
President before election Franklin D. Roosevelt Democratic Elected President Franklin D. Roosevelt Democratic

Elections in South Dakota
Federal government Presidential elections 1892 1896 1900 1904 1908 1912 1916 1920 1924 1928 1932 1936 1940 1944 1948 1952 1956 1960 1964 1968 1972 1976 1980 1984 1988 1992 1996 2000 2004 2008 2012 2016 2020 2024 Presidential primaries Democratic 2004 2008 2016 2020 2024 Republican 2008 2016 2024 U.S. Senate elections 1889 1891 1894 1897 1901 1903 1903 sp 1907 1909 1913 1914 1918 1920 1924 1926 1930 1932 1936 1938 1938 sp 1942 1944 1948 1950 1954 1956 1960 1962 1966 1968 1972 1974 1978 1980 1984 1986 1990 1992 1996 1998 2002 2004 2008 2010 2014 2016 2020 2022 2026 U.S. House elections 1889 1890 1891 AL sp 1892 1894 1896 1898 1900 1902 1904 1906 1908 AL sp 1910 1912 1914 1916 1918 1920 1922 1924 1926 1928 1930 1932 1934 1936 1938 1940 1942 1944 1946 1948 1950 1952 1954 1956 1958 1960 1962 1964 1966 1968 1970 1972 1974 1976 1978 1980 1982 1984 1986 1988 1990 1992 1994 1996 1998 2000 2002 2004 AL sp 2006 2008 2010 2012 2014 2016 2018 2020 2022
State government General elections 2010 2014 2018 2020 2022 Gubernatorial elections 1889 1890 1892 1894 1896 1898 1900 1902 1904 1906 1908 1910 1912 1914 1916 1918 1920 1922 1924 1926 1928 1930 1932 1934 1936 1938 1940 1942 1944 1946 1948 1950 1952 1954 1956 1958 1960 1962 1964 1966 1968 1970 1972 1974 1978 1982 1986 1990 1994 1998 2002 2006 2010 2014 2018 2022 Secretary of State elections 2022 Attorney General elections 2018 2022 Senate elections 2020 2022 House of Representatives elections 2020 2022
Ballot measures 2006 Amendment C 2008 Measure 9 Measure 10 2020 Amendment A Measure 26 2024 Amendment E Amendment G Amendment H
Sioux Falls City elections 2010 2012 2014 2016 2018 2020 2022 2024 Mayoral elections 1974 1978 1982 1986 1990 1994 1998 2002 2006 2010 2014 2018 2022
Rapid City City elections 2020 2022 2024 2026 Mayoral elections 2022
Pierre City elections 2020 2022 2024 2026 Mayoral elections 2022
v t e

The 1940 United States presidential election in South Dakota took place on November 5, 1940, as part of the 1940 United States presidential election. Voters chose four^[2] representatives, or electors, to the Electoral College, who voted for president and vice president.

South Dakota was won by Wendell Willkie (R–New York), running with Minority Leader Charles L. McNary, with 57.41% of the popular vote, against incumbent President Franklin D. Roosevelt (D–New York), running with Secretary Henry A. Wallace, with 42.59% of the popular vote.^[3][4]

South Dakota would prove to be Willkie's largest win of any state, as he carried the state by 14.82 percentage points, despite Roosevelt carrying it by 12 percentage points four years prior.^[5] Additionally, with 57.41% of the popular vote, South Dakota was Willkie's strongest state in the 1940 election in terms of popular vote percentage.^[6]