The 1842 United States general election occurred in the middle of independent President John Tyler's term, during the Second Party System. Members of the 28th United States Congress were chosen in this election. Whigs kept control of the Senate, but lost control of the House.
Following the 1840 census, the size of the House was reduced by 19 seats. Democrats won massive gains, turning a commanding Whig majority into a dominant Democratic majority.
In the Senate, Democrats picked up one seat, but Whigs retained the majority.