Franklin leans slightly Republican by roughly 6 points: about 47% of voters vote Democratic and 53% Republican.
About 97% of adults in Franklin typically vote, above the U.S. average of about 62%. Among adults in Franklin, ~46% vote Democratic, ~51% Republican, and ~3% don't vote. The map below shows estimated turnout by block group.
How Franklin compares
Among cities within 25 miles, Franklin leans more Republican than 31 of 80 neighbors.
Franklin runs about 5 points more Republican than Wisconsin as a whole.
Politics vary noticeably by neighborhood within Franklin. The south side runs the most Democratic (D+13) and the southwest side runs the most Republican (R+19), a spread of about 32 points.
Why Franklin 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 Franklin, not a ranked or complete list of what matters most.
Franklin votes Republican even though it is densely developed (about 75%, far above the Wisconsin average of 24%). State and regional patterns outweigh the Democratic lean that density usually predicts here.
Cancer-screening access and voter turnout
Places with high colon-cancer-screening access tend to turn out at a higher rate; Franklin, WI sits in the top tenth nationally on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.
Why turnout in Franklin looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Franklin 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%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Greendale, WI D+4
- Hales Corners, WI Even
- Greenfield, WI D+6
- Kneeland, WI R+33
- Oak Creek, WI R+3
- Muskego, WI R+24
- South Milwaukee, WI D+5
- West Allis, WI D+14
- New Berlin, WI R+14
- Cudahy, WI D+7
Cities with Similar Populations
- New Lenox, IL R+21
- Kearns, UT D+3
- Middle River, MD D+14
- Okeechobee, FL R+46
- Somerset, NJ D+38
- Oakville, MO R+12
- Elizabethton, TN R+58
- Hyde Park, MA D+59
- Egypt Lake-Leto, FL R+5
- Elk Grove Village, IL D+3
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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.