Prior to redistricting the district was represented by Democrat Chris Kolker and Republican Jack Tate.

[3][4] District 27 is based in Centennial, a suburb of Denver in southern Arapahoe County, and also covers nearby Dove Valley.

[6] Colorado state senators are elected to staggered four-year terms.

The old 27th district held elections in presidential years, but the new district drawn following the 2020 Census will hold elections in midterm years.

Incumbent Senator Chris Kolker was redistricted to the 16th district, which won't be up until 2024; State Rep. Tom Sullivan is running for the 27th district instead.