Frederick leans Republican by roughly 20 points: about 40% of voters vote Democratic and 60% Republican.
About 86% of adults in Frederick typically vote, above the U.S. average of about 62%. Among adults in Frederick, ~34% vote Democratic, ~52% Republican, and ~14% don't vote. The map below shows estimated turnout by block group.
How Frederick compares
Among cities within 25 miles, Frederick leans more Republican than 39 of 56 neighbors.
Frederick runs about 32 points more Republican than Colorado as a whole. Colorado leans Democratic overall, while Frederick is one of the few Republican-leaning pockets.
Politics vary noticeably by neighborhood within Frederick. The west side is the most Republican-leaning (R+36) and the southwest side is the least Republican-leaning (R+14), a spread of about 22 points.
Why Frederick leans the way it does
This analysis examined 14,881 data points per city to find what predicts political lean and turnout. The items below are a few correlations that stood out for Frederick, not a ranked or complete list of what matters most.
Frederick votes Republican even though it is densely developed (about 57%, well above the Colorado average of 35%). State and regional patterns outweigh the Democratic lean that density usually predicts here. A high family-household share predicts Republican voting, and about 80% of households in Frederick are family households, above 89% of cities. Frederick runs against the grain of Colorado, a Republican-leaning pocket in a Democratic-leaning state.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; Frederick, CO sits in the top quarter nationally on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.
Why turnout in Frederick looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Frederick is in the top quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 68%, about 8 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 94% of households in Frederick own their home, about 19 points above the U.S. average of 75%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Dacono, CO R+16
- Firestone, CO R+19
- Vollmar, CO R+43
- Erie, CO D+21
- Wattenberg, CO R+30
- Rinn, CO D+7
- Fort Lupton, CO R+22
- Mead, CO R+26
- Todd Creek, CO R+30
- Ione, CO R+47
Cities with Similar Populations
- Port Lavaca, TX R+29
- Princeton, MN R+42
- Trinity, NC R+57
- Mission, KS D+32
- Cayce, SC R+6
- Urbana, OH R+40
- Franklin Park, PA D+7
- Spanish Fort, AL R+55
- Keystone, FL R+27
- Decatur, IN R+51
All Local Stats
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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.