2020 Delaware House of Representatives election

The 2020 Delaware House of Representatives elections took place as part of the biennial 2020 United States elections. Delaware voters elected state representatives in all 41 districts. State representatives serve two-year terms in the Delaware House of Representatives. The election coincided with elections for other offices, including the Presidency, U.S. Senate, U.S. House of Representatives, governor, and state senate. The primary election was held on September 15, 2020. Following the previous election in 2018, Democrats retained control of the Delaware House with 26 seats to Republicans' 15 seats. To reclaim control of the chamber from Democrats, Republicans needed to net six House seats. Democrats retained control of the Delaware House following the 2020 general election, with the balance of power remaining unchanged: 26 Democrats to 15 Republicans.

Results summary
† - Incumbent not seeking re-election

Closest races
Seats where the margin of victory was under 10%:
 * 1) District 9, 9.6%
 * 2) District 21, 5.2%

Retiring incumbents

 * Quinn Johnson (D-District 8)

Incumbents defeated in the primary election

 * Ray Seigfried (D-District 7), defeated by Larry Lambert (D)
 * John Viola (D-District 26), defeated by Madinah Wilson-Anton (D)
 * Earl Jaques Jr. (D-District 27), defeated by Eric Morrison (D)

Detailed results
Results of the 2020 Delaware House of Representatives election by district:
 * Note: Delaware does not report results in uncompetitive primaries (i.e., races with only one candidate per party in the primary). Therefore, most districts do not include primary results.

District 1
Incumbent Democrat Nnamdi Chukwuocha had represented the 1st district since 2018.

District 2
Incumbent Democrat Stephanie Bolden had represented the 2nd district since 2010.

District 3
Incumbent Democrat Sherry Dorsey Walker had represented the 3rd district since 2018.

District 4
Incumbent Democrat Gerald Brady had represented the 4th district since 2006.
 * Democratic primary


 * General election

District 5
Incumbent Democrat Kendra Johnson had represented the 5th district since 2018.

District 6
Incumbent Democrat Debra Heffernan had represented the 6th district since 2010.

District 7
Incumbent Democrat Ray Seigfried had represented the 7th district since 2018. Seigfried lost re-nomination to fellow Democrat Larry Lambert, who went on to win the general election.
 * Democratic primary


 * General election

District 8
Incumbent Democrat Quinn Johnson had represented the 8th district since 2008. Johnson did not seek re-election, and fellow Democrat Sherae'a Moore won the general election.

District 9
Incumbent Republican Kevin Hensley had represented the 9th district since 2014.

District 10
Incumbent Democrat Sean Matthews had represented the 10th district since 2014.
 * Democratic primary


 * General election

District 11
Incumbent Republican Jeffrey Spiegelman had represented the 11th district since 2012.

District 12
Incumbent Democrat Krista Griffith had represented the 12th district since 2018.

District 13
Incumbent Democrat Larry Mitchell had represented the 13th district since 2006.

District 14
Incumbent Democrat Speaker of the House Peter Schwartzkopf had represented the 14th district since 2002.

District 15
Incumbent Democrat and Majority Leader Valerie Longhurst had represented the 15th district since 2004.

District 16
Incumbent Democrat Franklin Cooke Jr. had represented the 16th district since 2018.

District 17
Incumbent Democrat Melissa Minor-Brown had represented the 17th district since 2018.

District 18
Incumbent Democrat David Bentz had represented the 18th district since 2015.

District 19
Incumbent Democrat Kimberly Williams had represented the 19th district since 2012.

District 20
Incumbent Republican Stephen Smyk had represented the 20th district since 2012.

District 21
Incumbent Republican Michael Ramone had represented the 21st district since 2008.

District 22
Incumbent Republican Michael Smith had represented the 22nd district since 2018.

District 23
Incumbent Democrat Paul Baumbach had represented the 23rd district since 2012.

District 24
Incumbent Democrat Edward Osienski had represented the 24th district since 2010.

District 25
Incumbent Democrat John Kowalko Jr. had represented the 25th district since 2006.

District 26
Incumbent Democrat John Viola had represented the 26th district since 1998. Viola lost re-nomination to fellow Democrat Madinah Wilson-Anton, who went on to win the general election.
 * Democratic primary


 * General election

District 27
Incumbent Democrat Earl Jaques Jr. had represented the 27th district since 2008. Jaques lost re-nomination to fellow Democrat Eric Morrison, who went on to win the general election.
 * Democratic primary


 * General election

District 28
Incumbent Democrat William Carson Jr. had represented the 28th district since 2008.

District 29
Incumbent Democrat William Bush IV had represented the 29th district since 2018.

District 30
Incumbent Republican Shannon Morris had represented the 30th district since 2018.

District 31
Incumbent Democrat Sean Lynn had represented the 31st district since 2014.

District 32
Incumbent Democrat Andria Bennett had represented the 32nd district since 2012.

District 33
Incumbent Republican Charles Postles Jr. had represented the 33rd district since 2016.

District 34
Incumbent Republican Lyndon Yearick had represented the 34th district since 2014.
 * Democratic primary


 * General election

District 35
Incumbent Republican Jesse Vanderwende had represented the 35th district since 2018.

District 36
Incumbent Republican Bryan Shupe had represented the 36th district since 2018.

District 37
Incumbent Republican Ruth Briggs King had represented the 37th district since 2010.

District 38
Incumbent Republican Ronald Gray had represented the 38th district since 2012.

District 39
Incumbent Republican and Minority Leader Daniel Short had represented the 39th district since 2006.

District 40
Incumbent Republican Timothy Dukes had represented the 40th district since 2012.

District 41
Incumbent Republican Richard Collins had represented the 41st district since 2014.