Districting and Apportionment Commission

Redistricting is the act of drawing new political boundaries. In Montana, the five-member Districting and Apportionment Commission has authority under the Montana Constitution to draw the boundaries of congressional and legislative districts every 10 years. Using population data from the most recent U.S. Census, the commission must draw districts with approximately the same number of people in them.

1990 Commission 2000 Commission 2010 Commission


The Districting and Apportionment Commission has authority under the Montana Constitution to draw the boundaries of congressional and legislative districts every 10 years, using population data from the most recent U.S. Census. Montana is one of only thirteen states that give the primary responsibility for drawing legislative districts to a commission.

After results from the federal census are available, the commission must complete a Congressional redistricting plan within 90 days. 

The Legislature has 30 days to make recommendations to the commission. Within 30 days of receiving the Legislature's recommendations, the commission must file the redistricting plan with the Secretary of State and it becomes law. Although the commission may modify the plan to accommodate the Legislature's recommendations, it is not required to do so. 

Members

  • Article V, Section 14(2) of the Montana Constitution provides that the redistricting and reapportioning of the state shall be carried out by a commission of five citizens and lists the manner in which those commissioners are to be selected.
    • Commissioners are selected in the session immediately before a federal census.
    • Commissioners may not be public officials.
    • The majority and minority leaders of each house of the Legislature select one commissioner.
    • The first four commissioners have 20 days to select the fifth member, who will also be the commission's presiding officer.
    • The Supreme Court selects the fifth commissioner if the first four are unable to select a commissioner within the 20 days.

Contact Staff  with Districting Questions

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