Lyon County leans slightly Republican by roughly 14 points: about 43% of voters vote Democratic and 57% Republican.
About 58% of adults in Lyon County typically vote, near the U.S. average of about 62%. Among adults in Lyon County, ~25% vote Democratic, ~33% Republican, and ~42% don't vote. The map below shows estimated turnout by block group.
How Lyon County compares
Among counties within 50 miles, Lyon County leans more Republican than 1 of 8 neighbors.
Politically, Lyon County sits close to the rest of Kansas.
Politics vary noticeably by city within Lyon County. The southeast side is the most Republican-leaning (R+58) and the west side is the least Republican-leaning (R+11), a spread of about 47 points.
Why Lyon 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 Lyon County, not a ranked or complete list of what matters most.
Lyon County votes Republican even though it is densely developed (about 65%, far above the Kansas average of 19%). State and regional patterns outweigh the Democratic lean that density usually predicts here.
Never-married share, developed land, and voter turnout
Places that combine a never-married-heavy adult population and a heavily developed built environment tend to turn out at a lower rate, as Lyon County, KS does.
Why turnout in Lyon County looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Lyon County is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. Renters vote less often than owners, and about 39% of households in Lyon County rent, compared to around 22% in nearby counties. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Chase County, KS R+49
- Coffey County, KS R+58
- Morris County, KS R+52
- Osage County, KS R+49
- Greenwood County, KS R+61
- Wabaunsee County, KS R+53
- Woodson County, KS R+55
- Shawnee County, KS D+4
- Anderson County, KS R+58
- Franklin County, KS R+44
Counties with Similar Populations
- Henry County, TN R+55
- Franklin County, AL R+63
- Jefferson Davis Parish, LA R+60
- Juneau City and Borough, AK D+22
- Chester County, SC R+16
- Claiborne County, TN R+70
- Evangeline Parish, LA R+39
- Hale County, TX R+44
- Dorchester County, MD R+9
- Logan County, WV R+66
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.