Linn County is a Republican stronghold. About 19% of voters here vote Democratic and 81% Republican.
About 71% of adults in Linn County typically vote, above the U.S. average of about 62%. Among adults in Linn County, ~13% vote Democratic, ~58% Republican, and ~29% don't vote. The map below shows estimated turnout by block group.
How Linn County compares
Among counties within 50 miles, Linn County is the most Republican-leaning.
Linn County runs about 45 points more Republican than Kansas as a whole.
Politics vary noticeably by city within Linn County. The southwest side is the most Republican-leaning (R+73) and the northeast side is the least Republican-leaning (R+52), a spread of about 21 points.
Why Linn 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 Linn County, not a ranked or complete list of what matters most.
Rural areas vote Republican. About 10% of residents in Linn County live in densely developed areas, about 9 points below the Kansas average of 19%.
Population density and Republican lean
Places with low population density tend to lean Republican; Linn County, KS sits in the bottom quarter nationally on this measure.
Why turnout in Linn County looks the way it does
Homeowners vote more often than renters. About 82% of households in Linn County own their home, about 7 points above the U.S. average of 75%. High high-school completion lines up with higher turnout, and about 94% of adults in Linn County have completed high school, above 86% of counties. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Bates County, MO R+60
- Miami County, KS R+39
- Anderson County, KS R+58
- Bourbon County, KS R+48
- Franklin County, KS R+44
- Vernon County, MO R+56
- Allen County, KS R+48
- Cass County, MO R+32
- Johnson County, KS D+9
- Coffey County, KS R+58
Counties with Similar Populations
- Humboldt County, IA R+43
- Wilkes County, GA R+13
- Chattahoochee County, GA R+14
- Greenlee County, AZ R+45
- Brewster County, TX R+12
- Iron County, MO R+60
- Caldwell Parish, LA R+73
- Benewah County, ID R+60
- Yellow Medicine County, MN R+47
- McCormick County, SC R+5
Sources and methodology
Precinct-level voting records used to fit the model come from Kansas 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.