Erie leans Democratic by roughly 20 points: about 60% of voters vote Democratic and 40% Republican.
About 85% of adults in Erie typically vote, above the U.S. average of about 62%. Among adults in Erie, ~51% vote Democratic, ~34% Republican, and ~15% don't vote. The map below shows estimated turnout by block group.
How Erie compares
Among cities within 25 miles, Erie leans more Democratic than 34 of 64 neighbors.
Erie runs about 10 points more Democratic than Colorado as a whole.
Politics vary noticeably by neighborhood within Erie. The southwest side runs the most Democratic (D+47) and the northeast side runs the most Republican (R+3), a spread of about 50 points.
Why Erie 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 Erie, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 68% of adults in Erie hold a bachelor's degree, about 40 points above the U.S. average of 28%. Dense areas vote Democratic, and Erie sits in the top fifth on density (about 59%, above 89% of cities).
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; Erie, 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 Erie looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Erie 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 98% of adults in Erie have completed high school, above 94% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Lafayette, CO D+49
- Dacono, CO R+16
- Louisville, CO D+59
- Frederick, CO R+21
- Broomfield, CO D+22
- Gunbarrel, CO D+55
- Niwot, CO D+47
- Superior, CO D+51
- Todd Creek, CO R+30
- Firestone, CO R+19
Cities with Similar Populations
- Savage, MN D+10
- Barstow, CA R+13
- Paradise Hills, NM D+6
- Union City, GA D+79
- Laplace, LA D+25
- Willingboro, NJ D+77
- Seaside, CA D+36
- Franklin Town, MA D+16
- Pittsford, NY D+30
- El Paso de Robles, CA R+2
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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.