
Denver Metro Area Map courtesy of www.larryhotz.com
Starting in 2008 after the Democratic National Convention that was held in Denver and Barack Obama’s ultimate election, Democrats have dominated Colorado presidential politics. Notice the significant jump in the Democratic vote in Denver after the convention. Arapahoe, a mostly Republican County, also drifted towards the Democrats in 2008 and much further after the 2018 election with a near sweep of county offices.
Douglas County remains Republican but not as strongly as early in the century. After Obama, Democrats Hillary Clinton, Joe Biden and Kamala Harris all won the Colorado presidential contests.

The metro area includes Adams, Arapahoe, Boulder, Broomfield, Denver, Douglas and Jefferson counties. Together, the region voted 63 percent for Harris in 2024, nine points higher than the state. Denver, Boulder and Broomfield were the most supportive counties for Harris and Douglas the least. Adams and Jefferson counties are more competitive, but the Democratic party has been in control.











