2010 census redistricting
From OpenCongress Wiki
Following the 2010 census, the U.S. congressional districts were redrawn in each state.
Due to population gains, the following districts were created:
States gaining four seats:
States gaining two seats:
States gaining one seat:
Several incumbents switched districts in the 2012 elections, often because their old district no longer contained substantial portions of their territory or even their residence. Known switchers include: