538 analyzes Colorado

538 reports:

The Republican Party’s base of support in Colorado is to the south and east of Denver. First, there are the Denver suburbs, where almost 40 percent of the state’s Republicans live, according to voter registration statistics compiled by Colorado’s Secretary of State’s office. In many ways, they are typical suburban Republicans: establishment friendly, fiscally focused and perhaps a little more moderate on social issues than Colorado Republicans farther to the south.

And:

Moving farther south from Denver, you approach El Paso County, where Colorado Springs is located. This is the heartland of Colorado’s evangelical community. Focus on the Family is based here.

And:

El Paso County contains about 15 percent of Colorado’s registered Republicans, the largest share of any county. In addition to a heavy evangelical presence, the area includes significant military installations, like Fort Carson and Peterson Air Force Base.