Waltham leans heavily Republican by roughly 40 points: about 30% of voters vote Democratic and 70% Republican.
About 67% of adults in Waltham typically vote, near the U.S. average of about 62%. Among adults in Waltham, ~20% vote Democratic, ~47% Republican, and ~33% don't vote. The map below shows estimated turnout by block group.
How Waltham compares
Among cities within 25 miles, Waltham leans more Republican than 29 of 57 neighbors.
Waltham runs about 44 points more Republican than Minnesota as a whole. Minnesota leans Democratic overall, while Waltham is one of the few Republican-leaning pockets.
Why Waltham 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 Waltham, not a ranked or complete list of what matters most.
Waltham votes against the grain of Minnesota. Minnesota leans Democratic overall, while Waltham runs about 44 points more Republican. A high family-household share predicts Republican voting, and about 77% of households in Waltham are family households, above 83% of cities.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; Waltham, MN sits in the top quarter nationally on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.
Why turnout in Waltham looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Waltham 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 68%, about 8 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 95% of households in Waltham own their home, about 20 points above the U.S. average of 75%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Mayville, MN R+38
- Hayfield, MN R+37
- Sargeant, MN R+47
- Lansing, MN R+34
- Brownsdale, MN R+35
- Blooming Prairie, MN R+31
- Corning, MN R+39
- Mapleview, MN R+3
- Nicolville, MN R+26
- Dexter, MN R+47
Cities with Similar Populations
- Cocked Hat, DE R+38
- Cottage Grove, AL D+45
- Barnhill, IL R+72
- Gasburg, VA R+20
- Francis, OK R+67
- Park, IN R+61
- Lomax, IL R+48
- Pansy, OH R+64
- Hellier, KY R+78
- Walkersville, WV R+62
All Local Stats
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Sources and methodology
Precinct-level voting records used to fit the model come from Minnesota 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.