Mason City is a Republican stronghold. About 11% of voters here vote Democratic and 89% Republican.
About 78% of adults in Mason City typically vote, above the U.S. average of about 62%. Among adults in Mason City, ~9% vote Democratic, ~70% Republican, and ~21% don't vote. The map below shows estimated turnout by block group.
How Mason City compares
Among cities within 25 miles, Mason City leans more Republican than 17 of 18 neighbors.
Mason City runs about 57 points more Republican than Nebraska as a whole.
Why Mason City 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 Mason City, not a ranked or complete list of what matters most.
Rural areas with a high white share vote Republican. Mason City sits in the bottom quarter on density and about 96% of residents are non-Hispanic white, about 9 points above the Nebraska average of 88%.
Population density and Republican lean
Places with low population density tend to lean Republican; Mason City, NE sits in the bottom tenth nationally on this measure.
Why turnout in Mason City looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Mason City 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%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Ansley, NE R+74
- Litchfield, NE R+70
- Westerville, NE R+74
- Berwyn, NE R+80
- Hazard, NE R+69
- Arcadia, NE R+70
- Loup City, NE R+60
- Miller, NE R+71
- Sumner, NE R+73
- Pleasanton, NE R+70
Cities with Similar Populations
- Femme Osage, MO R+59
- Frog Town, AR R+66
- Sherburnville, IL R+42
- Springtown, IN R+58
- Bohemia, PA R+36
- Romayor, TX R+72
- Vandervoort, AR R+69
- Vanatta, OH R+52
- San Isidro, TX R+9
- Rdg Mnr Est, FL R+52
Sources and methodology
Precinct-level voting records used to fit the model come from Nebraska 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.