Cass County leans heavily Republican by roughly 42 points: about 29% of voters vote Democratic and 71% Republican.
About 85% of adults in Cass County typically vote, above the U.S. average of about 62%. Among adults in Cass County, ~25% vote Democratic, ~60% Republican, and ~15% don't vote. The map below shows estimated turnout by block group.
How Cass County compares
Among counties within 50 miles, Cass County leans more Republican than 10 of 15 neighbors.
Cass County runs about 21 points more Republican than Nebraska as a whole.
Politics vary noticeably by city within Cass County. The south side is the most Republican-leaning (R+47) and the northeast side is the least Republican-leaning (R+35), a spread of about 12 points.
Why Cass 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 Cass County, not a ranked or complete list of what matters most.
Areas with many family households vote Republican. About 70% of households in Cass County are family households, above 80% of counties.
Homeownership and voter turnout
Places with homeowner-heavy households tend to turn out at a higher rate; Cass County, NE sits in the top tenth nationally on this measure.
Why turnout in Cass County looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Cass 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 66%, about 6 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 86% of households in Cass County own their home, above 97% of counties. High high-school completion lines up with higher turnout, and about 96% of adults in Cass County have completed high school, above 96% of counties. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Sarpy County, NE R+10
- Otoe County, NE R+39
- Mills County, IA R+33
- Douglas County, NE D+17
- Pottawattamie County, IA R+18
- Fremont County, IA R+47
- Saunders County, NE R+46
- Lancaster County, NE D+7
- Washington County, NE R+42
- Johnson County, NE R+51
Counties with Similar Populations
- Lewis County, NY R+48
- Ashe County, NC R+47
- Carter County, KY R+61
- Geneva County, AL R+74
- Oceana County, MI R+28
- Marlboro County, SC D+9
- Wasco County, OR R+14
- Boone County, IA R+24
- Juneau County, WI R+31
- Carroll County, OH R+55
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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.