All 242 seats in the U.S. House of Representatives
122 seats needed for a majority
In a Whig wave, voters gave the Whig Party a House majority for the first time. Most Americans experienced the Panic of 1837 as a severe economic downturn. Its perceived mishandling by Democratic President Martin Van Buren fueled new support for alternative economic policies favored by Whigs of which voters had previously been skeptical. Collapse of the Anti-Masonic Party in the late 1830s also drove some third-party incumbents into the Whig Party. Newly elected members included Robert M. T. Hunter, Independent of Virginia, and Zadoc Casey, Independent Democrat of Illinois.
|Louisiana||District||July 6–8, 1840||3||1||1||2||1|
|Missouri||At-large||August 3, 1840||2||2||0|
|Illinois||District||August 7, 1840||3||2[c]||1|
|Vermont||District||September 4, 1840||5||0||2||5||2|
|Maine||District||September 14, 1840||8||4||2||4||2|
|Arkansas||At-large||October 5, 1840||1||1||0|
|Georgia||At-large||October 6, 1840||9||0||9|
|South Carolina||District||October 12–13, 1840||9||8||1|
|Ohio||District||October 13, 1840||19||7||4||12||4|
|Pennsylvania||District (25[d])||October 13, 1840||28||15||2||13||8|
|New York||District (33[e])||November 2–4, 1840||40||21||2||19||2|
|Connecticut||District||November 3, 1840||6||0||6|
|Michigan||At-large||November 3, 1840||1||0||1||1||1|
|New Jersey||At-large||November 3, 1840||6||0||5||6||5|
|Massachusetts||District||November 9, 1840||12||1||1||11||1|
|Delaware||At-large||November 10, 1840||1||0||1||1||1|
|New Hampshire||At-large||March 9, 1841||5||5||0|
|Rhode Island||At-large||April 21, 1841||2||0||2|
|Virginia[f]||District||April 23, 1841||21[f]||10||2||10||3|
|Kentucky||District||April 26, 1841||13||2||11|
|Indiana||District||May 3, 1841||7||1||4||6||4|
|Tennessee||District||May 6, 1841||13||5||1||8||1|
|North Carolina||District||May 13, 1841||13||5||3||8||3|
|Maryland||District (7[g])||May 17, 1841||8||2||3||6||3|
|Alabama||At-large[h]||May 20, 1841||5||5||2||0||2|
|Mississippi||At-large||November 1–2, 1841||2||2||0|
The 1st session of the 27th Congress began May 31, 1841, before Mississippi had elected Representatives, leaving that State unrepresented until the 2nd session.
- Ohio's 4th congressional district: 1840
- Pennsylvania's 22nd congressional district: 1840
- Pennsylvania's 13th congressional district: 1840
- Maine's 4th congressional district: 1841
- Pennsylvania's 2nd congressional district: 1841
- Pennsylvania's 13th congressional district: 1841
- Pennsylvania's 18th congressional district: 1841
- Pennsylvania's 18th congressional district (again): 1841
- Pennsylvania's 20th congressional district: 1841
|New York 26||Francis Granger||Whig||1838||Incumbent resigned March 5, 1841 to become U.S. Postmaster General.
New member elected May 13, 1841.
Successor seated May 21, 1841.
|New York 26||John Greig||Whig||1841 (Special)||Incumbent resigned September 25, 1841.
New member elected.
Successor seated November 27, 1841.
- United States elections, 1840
- 26th United States Congress
- 27th United States Congress
- Includes one Independent from Virginia, and one Independent Democrat from Illinois.
- There was 1 Independent and 1 Independent Democrat.
- Including one Independent Democrat elected to Illinois's 2nd congressional district.
- Includes 3 plural districts
- Includes 5 plural districts
- Robert M. T. Hunter was elected as an Independent in Virginia's 9th congressional district, and so is not included in the figures here. Hunter had previously run in earlier elections as a Whig.
- Includes 1 plural district
- Changed from district
- Dubin, Michael J. (March 1, 1998). United States Congressional Elections, 1788-1997: The Official Results of the Elections of the 1st Through 105th Congresses. McFarland and Company. ISBN 978-0786402830.
- Martis, Kenneth C. (January 1, 1989). The Historical Atlas of Political Parties in the United States Congress, 1789-1989. Macmillan Publishing Company. ISBN 978-0029201701.
- Moore, John L., ed. (1994). Congressional Quarterly's Guide to U.S. Elections (Third ed.). Congressional Quarterly Inc. ISBN 978-0871879967.
- "Party Divisions of the House of Representatives* 1789–Present". Office of the Historian, House of United States House of Representatives. Retrieved January 21, 2015.
- Office of the Historian (Office of Art & Archives, Office of the Clerk, U.S. House of Representatives)