Tag Archives: 1999 US Supreme Court ruling

Colorado Releases First New Map


District 1 – Rep. Donna DeGette (D-Denver)
District 2 – Rep. Joe Neguse (D-Lafayette/Boulder)
District 3 – Rep. Lauren Boebert (R-Silt/Western Slope)
District 4 – Rep. Ken Buck (R-Windsor/East Colorado)
District 5 – Rep. Doug Lamborn (R-Colorado Springs)
District 6 – Rep. Jason Crow (D-Aurora)
District 7 – New Seat
District 8 – Rep. Ed Perlmutter (D-Arvada/Thornton)


By Jim Ellis

June 28, 2021 — The Colorado Independent Redistricting Commission, using only Census Bureau estimates because no state has yet received its census tract information and won’t until at least Aug. 15, released a preliminary new eight-district US House map late last week. Colorado is one of the states that gained a congressional seat under the 2020 national reapportionment.

The published commission map will not be the final version because population estimates and statistical sampling cannot be used for redistricting purposes per a 1999 US Supreme Court ruling (Department of Commerce v. US House of Representatives). Therefore, if this map is to become the basis for the actual plan, it will have to be adjusted after Colorado is presented with its census tract data.

This is the first redistricting cycle where Colorado has opted for the commission process. The new congressional map looks similar to the current seven-district design, in that the basic configurations of the seats and anchor population centers remain consistent with the notable exception of Rep. Ed Perlmutter’s (D-Arvada) current 7th District.

What appears designed as the new seat, District 8, takes a key population center from the 7th, the Arvada-Westminster-Thornton corridor, and makes it the new 8th CD anchor. This means the new 8th begins just north of Denver in Adams County and consumes about 85 percent of the local entity before moving slightly west to capture small Broomfield County and parts of Jefferson and Boulder counties. It then continues northeast to encompass a portion of Weld County.

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