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

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

Arvada leans Democratic by roughly 16 points: about 58% of voters vote Democratic and 42% Republican.

 

About 86% of adults in Arvada typically vote, above the U.S. average of about 62%. Among adults in Arvada, ~50% vote Democratic, ~36% Republican, and ~14% don't vote. The map below shows estimated turnout by block group.

How Arvada compares

Among cities within 25 miles, Arvada leans more Democratic than 34 of 78 neighbors.

Arvada runs about 4 points more Democratic than Colorado as a whole.

Politics vary noticeably by neighborhood within Arvada. The southeast side is the most Democratic-leaning (D+26) and the northwest side is the least Democratic-leaning (D+5), a spread of about 21 points.

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

Dense areas vote Democratic. About 89% of residents in Arvada live in densely developed areas, about 53 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and Arvada sits in the top quarter (about 51%, above 94% of cities).

Walkability and Democratic lean

Places with a highly walkable street grid tend to lean Democratic; Arvada, CO sits in the top tenth 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 Arvada looks the way it does

Areas with strong routine healthcare access turn out at higher rates. Arvada 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 69%, about 9 points above the U.S. average of 60%. Learn more about the findings and methodology on the political spectrum map.

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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.