Jackson County leans heavily Republican by roughly 44 points: about 28% of voters vote Democratic and 72% Republican.
About 66% of adults in Jackson County typically vote, near the U.S. average of about 62%. Among adults in Jackson County, ~18% vote Democratic, ~47% Republican, and ~35% don't vote. The map below shows estimated turnout by block group.
How Jackson County compares
Among counties within 50 miles, Jackson County leans more Republican than 6 of 13 neighbors.
Jackson County runs about 28 points more Republican than Kansas as a whole.
Politics vary noticeably by city within Jackson County. The northwest side is the most Republican-leaning (R+61) and the southwest side is the least Republican-leaning (R+39), a spread of about 22 points.
Why Jackson 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 Jackson County, not a ranked or complete list of what matters most.
Areas with many family households vote Republican. About 69% of households in Jackson County are family households, above 76% of counties.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; Jackson County, KS sits above the national average 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 Jackson County looks the way it does
Areas with high high-school completion turn out at higher rates. About 94% of adults in Jackson County have completed high school, above 80% of counties. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Jefferson County, KS R+50
- Shawnee County, KS D+4
- Brown County, KS R+42
- Nemaha County, KS R+64
- Atchison County, KS R+34
- Pottawatomie County, KS R+46
- Wabaunsee County, KS R+53
- Douglas County, KS D+35
- Leavenworth County, KS R+20
- Doniphan County, KS R+58
Counties with Similar Populations
- Amelia County, VA R+40
- Calhoun County, MS R+39
- Mono County, CA D+13
- Crenshaw County, AL R+54
- Osage County, MO R+70
- Clay County, IL R+63
- Moffat County, CO R+52
- Shoshone County, ID R+43
- Johnson County, IL R+41
- Bamberg County, SC D+18
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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.