Sumner is a Republican stronghold. About 13% of voters here vote Democratic and 87% Republican.
About 73% of adults in Sumner typically vote, above the U.S. average of about 62%. Among adults in Sumner, ~9% vote Democratic, ~64% Republican, and ~27% don't vote. The map below shows estimated turnout by block group.
How Sumner compares
Among cities within 25 miles, Sumner leans more Republican than 11 of 15 neighbors.
Sumner runs about 53 points more Republican than Nebraska as a whole.
Why Sumner 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 Sumner, not a ranked or complete list of what matters most.
Rural areas vote Republican. About 3% of residents in Sumner live in densely developed areas, about 14 points below the Nebraska average of 17%. A high family-household share predicts Republican voting, and about 80% of households in Sumner are family households, above 90% of cities.
Developed land and Republican lean
Places with a rural land-use pattern tend to lean Republican; Sumner, NE sits in the bottom tenth nationally on this measure. Developed land does not change how people vote; it mostly reflects how urban a place is.
Why turnout in Sumner looks the way it does
Turnout in Sumner sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Miller, NE R+71
- Eddyville, NE R+73
- Amherst, NE R+67
- Overton, NE R+69
- Lexington, NE R+13
- Oconto, NE R+77
- Elm Creek, NE R+63
- Mason City, NE R+78
- Riverdale, NE R+65
- Pleasanton, NE R+70
Cities with Similar Populations
- Oneida, OH R+55
- Northpoint, TN R+64
- Oak Center, MN R+47
- Gulde, MS R+55
- Carolina, WV R+49
- Rochester, IA R+38
- New Fairfield, IN R+66
- Tippettville, GA R+21
- Woodmere, NJ R+38
- Conroy, IA R+33
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.