1820 United States House of Representatives election in Delaware

Delaware elected its members October 3, 1820.

District	Incumbent			This race
District	Member	Party	First elected	Results	Candidates
Delaware at-large 2 seats on a general ticket	Louis McLane	Federalist	1816	Incumbent re-elected.	√ Caesar A. Rodney (Democratic-Republican) 26.9% √ Louis McLane (Federalist) 26.1% Willard Hall (Democratic-Republican) 23.5% John Mitchell (Federalist) 23.3% Others 0.2%
Delaware at-large 2 seats on a general ticket	Willard Hall	Democratic-Republican	1816	Incumbent lost re-election. New member elected. Democratic-Republican hold.