These legislative district boundaries are geographically defined areas from which members are elected to State and Federal Legislatures. 

Redistricting is the process used to evaluate the map boundaries of U.S. Congressional and state legislative districts and, as necessary, redraw them to ensure each district includes a substantially equal number of people.  Each Congressional, State Senate, or State House district can be said to have an “ideal” number of residents.  The “ideal” population is simply the number that results from dividing the State’s total population by the number of districts for the given legislative body.  For example, Connecticut’s “ideal” Congressional district size is 721,189, which is the CT population as counted by the 2020 US Census divided by its 5 Congressional districts.

In Connecticut, the State Legislature is primarily responsible for drawing both congressional and state legislative district lines. Maps must be approved by a two-thirds vote in each chamber. If the State Legislature is unable to approve new maps, a backup commission is convened to draw congressional and state legislative district boundaries. The commission consists of nine members. The four legislative leaders appoint two members each. The ninth member is selected by the eight previously selected commissioners.