Elections & Vacancies

The U.S. House of Representatives has been a popularly-elected body with its membership reconstituted every two years throughout its history. Mid-Congress vacancies in the House are filled by special elections. The following charts provide data on historical election outcomes and vacancies.

Election Statistics, 1920 to Present

Election Statistics, 1920 to Present

Since 1920, the Clerk of the House has compiled and published the official vote counts for federal elections from the official sources among the various states and territories.

Vacancies & Successors, 1997 to Present

Vacancies & Successors, 1997 to Present

View a list of House vacancies and successors from the 105th through the 115th Congresses (1999–2019).

Majority Changes in the House of Representatives, 1856 to Present

Majority Changes in the House of Representatives, 1856 to Present

Since the start of the modern party system in 1856, the House of Representatives has changed majority 18 times.