Greendale is a true toss-up. About 52% of voters here vote Democratic and 48% Republican.
About 98% of adults in Greendale typically vote, above the U.S. average of about 62%. Among adults in Greendale, ~51% vote Democratic, ~47% Republican, and ~2% don't vote. The map below shows estimated turnout by block group.
How Greendale compares
Among cities within 25 miles, Greendale leans more Democratic than 53 of 76 neighbors.
Greendale runs about 5 points more Democratic than Wisconsin as a whole.
Why Greendale leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in Greendale. The lean here lands roughly where demographic data alone would predict.
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; Greendale, WI 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 Greendale looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Greendale 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 72%, about 12 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 96% of adults in Greendale have completed high school, above 87% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Greenfield, WI D+6
- Franklin, WI R+6
- Hales Corners, WI Even
- West Allis, WI D+14
- West Milwaukee, WI D+28
- Oak Creek, WI R+3
- New Berlin, WI R+14
- St. Francis, WI D+12
- Cudahy, WI D+7
- South Milwaukee, WI D+5
Cities with Similar Populations
- Williamsburg, KY R+69
- Dayton, NV R+42
- Sunbury, PA R+34
- Malibu, CA D+27
- New Carlisle, OH R+43
- Hazel Park, MI D+18
- Fernway, PA R+9
- Brookside, DE D+24
- Hooksett, NH D+6
- West University Place, TX D+7
All Local Stats
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Sources and methodology
Precinct-level voting records used to fit the model come from Wisconsin Elections Commission, 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.