Lancaster County leans slightly Democratic by roughly 8 points: about 54% of voters vote Democratic and 46% Republican.
About 70% of adults in Lancaster County typically vote, above the U.S. average of about 62%. Among adults in Lancaster County, ~38% vote Democratic, ~32% Republican, and ~30% don't vote. The map below shows estimated turnout by block group.
How Lancaster County compares
Among counties within 50 miles, Lancaster County leans more Democratic than 11 of 12 neighbors.
Lancaster County runs about 28 points more Democratic than Nebraska as a whole. Nebraska leans Republican overall, while Lancaster County is one of the few Democratic-leaning pockets.
Politics vary noticeably by city within Lancaster County. The west side runs the most Democratic (D+19) and the southwest side runs the most Republican (R+18), a spread of about 37 points.
Why Lancaster 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 Lancaster County, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 85% of residents in Lancaster County live in densely developed areas, about 49 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and Lancaster County sits in the top quarter (about 41%, above 93% of counties). A high never-married share predicts Democratic voting, and about 37% of adults in Lancaster County have never been married, above 89% of counties.
Population density and Democratic lean
Places with high population density tend to lean Democratic; Lancaster County, NE sits in the top tenth nationally on this measure.
Why turnout in Lancaster County looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Lancaster 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 67%, about 7 points above the U.S. average of 60%. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Seward County, NE R+52
- Saline County, NE R+38
- Saunders County, NE R+46
- Cass County, NE R+42
- Otoe County, NE R+39
- Gage County, NE R+46
- Johnson County, NE R+51
- Butler County, NE R+62
- Sarpy County, NE R+10
- Douglas County, NE D+17
Counties with Similar Populations
- Fayette County, KY D+24
- Escambia County, FL R+13
- Durham County, NC D+59
- Luzerne County, PA R+14
- Spartanburg County, SC R+25
- Weld County, CO R+17
- St. Lucie County, FL R+5
- Albany County, NY D+30
- Boulder County, CO D+52
- Rockingham County, NH D+6
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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.