In Colorado, redistricting plans are adopted by a political commission and subject to approval by the state supreme court.
Final Approved Plan (approved September 28, 21)
Third Staff Plan: At its meeting on Monday, September 20, 2021, the Colorado Independent Congressional Redistricting Commission ("Commission") voted to direct the Colorado Independent Redistricting Commissions Staff ("Nonpartisan Staff") to use the Second Congressional Staff Plan ("Second Staff Plan") as the basis for the Third Congressional Staff Plan ("Third Staff Plan") and to take into consideration the issues raised by the Commissioners at that meeting.
Second Staff Plan: At the September 15 meeting, Commissioner Coleman submitted a list of suggested population adjustments to create districts with the required population deviation. Nonpartisan staff then adjusted the districts, largely following Commissioner Coleman's suggestions, to arrive at districts with populations within the required deviations.
First Staff Plan: In drafting the First Congressional Staff Plan, nonpartisan staff considered modifying the Preliminary Congressional Plan in response to the public comments by adding the tribal lands to the proposed Congressional District 4. These modifications would have shown how the subject area looked in a plan with Western Slope and Eastern Plains districts. However, if adding the tribal lands to an Eastern Plains district is the direction that the Congressional Commission decides to follow, this can be done as a simple amendment to the Preliminary Congressional Plan. Nonpartisan staff believes that it is instead more beneficial to the future work of the Congressional Commission for the First Congressional Staff Plan to place the subject area in a largely southern district. Further, the Congressional Commission now has two distinct plans created by nonpartisan staff that can be amended by the commission.
LULAC Proposed US House
Preliminary Plan: The commission approved a data set to allow staff to prepare the preliminary plan. Because the U.S. Census Bureau will not release the official redistricting data until August 2021, the commission decided that proceeding with preliminary data gives the commission the best chance of completing their work and receiving valuable feedback without delaying the 2022 election calendar.
Colorado Final Approved Senate Plan Errata version was used for this analysism due to a correction an erroneous join of a portion of Senate District 25 with Senate District 24
First Staff Final Plans - Legislative Senate
Preliminary State Legislative Senate Maps
Colorado Final Approved House Plan
First Staff Plans - Legislative House
Preliminary State Legislative House Maps