Montrose County leans Republican by roughly 30 points: about 35% of voters vote Democratic and 65% Republican.
About 84% of adults in Montrose County typically vote, above the U.S. average of about 62%. Among adults in Montrose County, ~29% vote Democratic, ~55% Republican, and ~16% don't vote. The map below shows estimated turnout by block group.
How Montrose County compares
Among counties within 50 miles, Montrose County leans more Republican than 4 of 5 neighbors.
Montrose County runs about 41 points more Republican than Colorado as a whole. Colorado leans Democratic overall, while Montrose County is one of the few Republican-leaning pockets.
Politics vary noticeably by city within Montrose County. The southwest side is the most Republican-leaning (R+59) and the east side is the least Republican-leaning (R+15), a spread of about 45 points.
Why Montrose County leans the way it does
This analysis examined 14,881 data points per county to find what predicts political lean and turnout. The items below are a few correlations that stood out for Montrose County, not a ranked or complete list of what matters most.
Montrose County votes against the grain of Colorado. Colorado leans Democratic overall, while Montrose County runs about 41 points more Republican. Dense places usually vote Democratic, but Montrose County runs against that pattern.
Housing overcrowding and voter turnout
Places with low overcrowding tend to turn out at a higher rate; Montrose County, CO sits in the bottom tenth nationally on this measure.
Why turnout in Montrose County looks the way it does
Turnout in Montrose County sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Delta County, CO R+35
- Ouray County, CO D+13
- San Miguel County, CO D+35
- Hinsdale County, CO R+6
- San Juan County, CO D+29
- Mesa County, CO R+20
- Gunnison County, CO D+31
- Dolores County, CO R+45
- Mineral County, CO R+5
- Garfield County, CO R+5
Counties with Similar Populations
- Union County, PA R+26
- Davie County, NC R+45
- Fulton County, OH R+45
- Camden County, MO R+54
- Miller County, AR R+26
- Danville City, VA D+32
- Manassas City, VA D+14
- Franklin County, TN R+59
- Vance County, NC D+19
- Erath County, TX R+55
Sources and methodology
Precinct-level voting records used to fit the model come from Colorado Secretary of State, Elections, distributed by the Voting and Election Science Team. Demographic inputs come from the U.S. Census Bureau (ACS 5-year estimates and the 2020 Decennial Census). Health and environmental inputs come from the CDC (PLACES and the Environmental Justice Index). Land cover comes from the USGS and EPA. Election-day and lead-up weather come from PRISM 4km daily grids and the NOAA Global Historical Climatology Network. Mail-voting and election-administration patterns come from the MIT Election Lab's Survey of the Performance of American Elections. Block-group crime detail comes from CrimeGrade. Internet data and modeling support provided by ISPreports.org.
Modeling and analysis by the BestNeighborhood data science team. Full methodology and findings: political spectrum map.
Methodology reviewed by the BestNeighborhood data team. Last updated May 2026.