Parker, CO Political Map | Democrat & Republican Areas in Parker

By the BestNeighborhood data science team. Last updated May 2026.

Parker leans slightly Republican by roughly 10 points: about 45% of voters vote Democratic and 55% Republican.

 

About 88% of adults in Parker typically vote, above the U.S. average of about 62%. Among adults in Parker, ~40% vote Democratic, ~48% Republican, and ~12% don't vote. The map below shows estimated turnout by block group.

How Parker compares

Among cities within 25 miles, Parker leans more Republican than 27 of 45 neighbors.

Parker runs about 21 points more Republican than Colorado as a whole. Colorado leans Democratic overall, while Parker is one of the few Republican-leaning pockets.

Politics vary noticeably by neighborhood within Parker. The northeast side is the most split-leaning (R+27) and the northwest side is the least split-leaning (R+3), a spread of about 24 points.

Why Parker 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 Parker, not a ranked or complete list of what matters most.

Parker votes Republican even though it is densely developed (about 67%, far 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 78% of households in Parker are family households, above 85% of cities. Parker runs against the grain of Colorado, a Republican-leaning pocket in a Democratic-leaning state.

Walkability and Democratic lean

Places with a highly walkable street grid tend to lean Democratic; Parker, CO sits in the top quarter nationally on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.

Why turnout in Parker looks the way it does

Areas with strong routine healthcare access turn out at higher rates. Parker 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 73%, about 13 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 96% of adults in Parker have completed high school, above 87% of cities. Learn more about the findings and methodology on the political spectrum map.

All Local Stats

Home Services

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.