2020 United States House of Representatives election in South Dakota

The 2020 United States House of Representatives election in South Dakota was held on November 3, 2020, to elect the U.S. representative from South Dakota's at-large congressional district. The election coincided with the 2020 U.S. presidential election, as well as other elections to the House of Representatives, elections to the United States Senate and various state and local elections.

Incumbent Republican Dusty Johnson was elected with 60.3% of the vote in 2018.

Declared

 * Dusty Johnson, incumbent U.S. Representative
 * Liz Marty May, state representative

Primary results
[[File:2020SDHouseGOP.svg|thumb|Results by county {{legend|#e27f7f|Johnson}}

{{legend|#e27f7f|50–60%}}

{{legend|#d75d5d|60–70%}}

{{legend|#D72F30|70–80%}}

{{legend|#c21b18|80–90%}} {{legend|#5fd35f|May}}

{{legend|#5fd35f|50–60%}}

{{legend|#37c837|60–70%}}

{{legend|#2ca02c|70–80%}} ]]

Democratic primary
No candidate was able to gather enough signatures to qualify for the Democratic primary. According to state party chairman Randy Seiler, Democratic canvassing efforts were hampered by the coronavirus outbreak.

Failed to qualify

 * Whitney Raver, small business owner
 * Brian Worth, financial crime specialist

Withdrawn

 * Ellee Spawn, resource coordinator

Declared

 * Randy Luallin, nominee for Colorado's 2nd congressional district in 2012

Counties that flipped from Democratic to Libertarian

 * Oglala Lakota (largest city: Pine Ridge)
 * Todd (largest city: Mission)

Counties that flipped from Democratic to Republican

 * Ziebach (largest city: Dupree)
 * Corson (Largest city: McLaughlin)
 * Clay (Largest city: Vermillion)
 * Dewey (Largest city: North Eagle Butte)
 * Buffalo (largest city: Fort Thompson)