In the United States, a redistricting commission is a body, other than the usual state legislative bodies, established to draw electoral district boundaries. Generally the intent is to avoid gerrymandering, or at least the appearance of gerrymandering, by specifying a nonpartisan or bipartisan body to comprise the commission drawing district boundaries.

[Congressional redistricting methods by state after the 2020 census:

{{legend|#00E673|Independent commission}} {{legend|#F0F000|Politician commission}} {{legend|#FF9B37|Passed by legislature with gubernatorial approval}} {{legend|#C90000|Passed by legislature, governor plays no role}} {{legend|#800080|Passed by legislature, simple majority veto override}} {{legend|#d5d3d5|Not applicable due to having one at-large district}} | upload.wikimedia.org/wikipedia/commons/e/ed/US///congressional///redistricting///methods%2C///post-2020///census.svg]

[Congressional redistricting methods by state after the 2010 census:

State legislatures control redistricting Commissions control redistricting Nonpartisan staff develop the maps, which are then voted on by the state legislature No redistricting due to having only one congressional district | upload.wikimedia.org/wikipedia/commons/4/4d/Redistricting///Methods///by///State.svg]

Nonpartisan or bipartisan commissions as of 2010

Currently, 21 U.S. states have some form of non-partisan or bipartisan redistricting commission. Of these 21 states, 13 use redistricting commissions to exclusively draw electoral district boundaries (see below). A 14th state, Iowa, uses a special redistricting process that uses neither the state legislature nor an independent redistricting commission to draw electoral district boundaries (see below). In 2015, the U.S. Supreme Court ruled in Arizona State Legislature v. Arizona Independent Redistricting Commission that redistricting commissions such as Arizona's, whose redistricting commission process is independent of the state legislature, were constitutional. For purposes of these tables: Iowa is a special case: Additionally, Maine and Vermont use advisory committees for redistricting. Connecticut, Illinois, Mississippi, Oklahoma, and Texas have backup redistricting commissions, if efforts at redistricting via the usual legislative process fail.

2021 redistricting

In 2021, following the 2020 census, a number of states will begin using new, non-partisan commissions or systems to redraw their legislative and/or congressional districts