Millbury leans Republican by roughly 26 points: about 37% of voters vote Democratic and 63% Republican.
About 87% of adults in Millbury typically vote, above the U.S. average of about 62%. Among adults in Millbury, ~32% vote Democratic, ~55% Republican, and ~13% don't vote. The map below shows estimated turnout by block group.
How Millbury compares
Among cities within 25 miles, Millbury leans more Republican than 21 of 84 neighbors.
Millbury runs about 15 points more Republican than Ohio as a whole.
Politics vary noticeably by neighborhood within Millbury. The southwest side is the most Republican-leaning (R+34) and the north side is the least Republican-leaning (R+20), a spread of about 14 points.
Why Millbury 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 Millbury, not a ranked or complete list of what matters most.
Car-dependent areas vote Republican. About 86% of residents in Millbury drive to work alone, about 12 points above the U.S. average of 74%.
Park access and Republican lean
Places with low park coverage tend to lean Republican; Millbury, OH sits in the bottom tenth nationally on this measure. Park access does not change how people vote; it tends to track denser, higher-income areas.
Why turnout in Millbury looks the way it does
Areas with high high-school completion turn out at higher rates. About 96% of adults in Millbury have completed high school, about 6 points above the U.S. average of 90%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Latcha, OH R+39
- Clay Center, OH R+38
- Northwood, OH R+20
- Walbridge, OH R+19
- Lemoyne, OH R+40
- Genoa, OH R+31
- Oregon, OH R+15
- Williston, OH R+39
- Lime City, OH R+29
- Curtice, OH R+35
Cities with Similar Populations
- Ravensdale, WA R+8
- Rollinsford, NH D+4
- New York Mills, NY R+17
- Huddleston, VA R+41
- Kulpmont, PA R+34
- Weidman, MI R+35
- Hays, TX R+14
- South Whitley, IN R+56
- French Lick, IN R+47
- West Branch, IA R+26
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Sources and methodology
Precinct-level voting records used to fit the model come from Ohio 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.