United States congressional delegations from Delaware

This is a chronological listing, in timeline format, of the United States Congressional Delegations from Delaware to the United States Senate and United States House of Representatives. U.S Senators are elected by popular vote for a six-year term, beginning January 3. Since 1831, elections in Delaware have been held in the first week of November of the year noted. Before 1914 United States Senators were chosen by the Delaware General Assembly and before 1935 all Congressional terms began March 4.

The dates for the various Congress represent the range of dates they could have been in session, rather than the actual dates of the sessions. Congressional terms began on March 4 through 1933. Since 1935 they have begun on January 3. The juxtaposition of the terms with the sessions is approximate; see the footnotes for actual dates of special appointments, elections, resignations or deaths.

The alternating grey and white boxes indicate the duration of the six-year Senate terms.

U.S Representatives are elected by popular vote for a two-year term, beginning January 3. Since 1831, Delaware elections have been held the first week of November of the year noted. Before 1831, elections were held in October and before 1935 all Congressional terms began March 4.

In Delaware all representatives have been elected from the state at large, rather than by district. There has always been the minimum one representative, except for the Thirteenth through Seventeenth Congress (1813–1823), when there were two representatives.

As of January 2017^[update], there are five former members of the U.S. House of Representatives from the U.S. State of Delaware who are currently living at this time.

As of January 2017^[update], there are two former U.S. Senators from the U.S. State of Delaware who are currently living at this time, both from Class 2.

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