Hamilton County is a Republican stronghold. About 20% of voters here vote Democratic and 80% Republican.
About 84% of adults in Hamilton County typically vote, above the U.S. average of about 62%. Among adults in Hamilton County, ~17% vote Democratic, ~67% Republican, and ~16% don't vote. The map below shows estimated turnout by block group.
How Hamilton County compares
Among counties within 50 miles, Hamilton County leans more Republican than 7 of 10 neighbors.
Hamilton County runs about 40 points more Republican than Nebraska as a whole.
Politics vary noticeably by city within Hamilton County. The southwest side is the most Republican-leaning (R+71) and the south side is the least Republican-leaning (R+58), a spread of about 12 points.
Why Hamilton County leans the way it does
This analysis examined 14,881 data points per county to find what predicts political lean and turnout. The items below are a few correlations that stood out for Hamilton County, not a ranked or complete list of what matters most.
Areas with many family households vote Republican. About 75% of households in Hamilton County are family households, about 8 points above the U.S. average of 67%.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; Hamilton County, NE 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 Hamilton County looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Hamilton County 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 82% of households in Hamilton County own their home, above 89% of counties. High high-school completion lines up with higher turnout, and about 97% of adults in Hamilton County have completed high school, in the top fraction of counties. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Merrick County, NE R+60
- Hall County, NE R+26
- York County, NE R+52
- Clay County, NE R+64
- Adams County, NE R+42
- Polk County, NE R+62
- Howard County, NE R+64
- Fillmore County, NE R+57
- Nance County, NE R+60
- Seward County, NE R+52
Counties with Similar Populations
- Rice County, KS R+54
- Pipestone County, MN R+48
- Deer Lodge County, MT R+18
- Latimer County, OK R+66
- Clear Creek County, CO D+21
- Cheyenne County, NE R+58
- Howard County, IA R+35
- Emmet County, IA R+37
- Charles Mix County, SD R+39
- Beaverhead County, MT R+42
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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.