Washington County is a Republican stronghold. About 17% of voters here vote Democratic and 83% Republican.
About 67% of adults in Washington County typically vote, near the U.S. average of about 62%. Among adults in Washington County, ~11% vote Democratic, ~56% Republican, and ~33% don't vote. The map below shows estimated turnout by block group.
How Washington County compares
Among counties within 50 miles, Washington County is the most Republican-leaning.
Washington County runs about 51 points more Republican than Kansas as a whole.
Politics vary noticeably by city within Washington County. The southwest side is the most Republican-leaning (R+79) and the north side is the least Republican-leaning (R+68), a spread of about 11 points.
Why Washington County leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in Washington County. The lean here lands roughly where demographic data alone would predict.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; Washington 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 Washington County looks the way it does
Areas with high high-school completion turn out at higher rates. About 95% of adults in Washington County have completed high school, about 5 points above the U.S. average of 90%. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Marshall County, KS R+53
- Jefferson County, NE R+51
- Clay County, KS R+56
- Republic County, KS R+62
- Cloud County, KS R+55
- Gage County, NE R+46
- Thayer County, NE R+61
- Riley County, KS D+4
- Pawnee County, NE R+61
- Geary County, KS R+16
Counties with Similar Populations
- Cotton County, OK R+66
- Fillmore County, NE R+57
- Greer County, OK R+67
- Calhoun County, GA D+13
- Harper County, KS R+65
- Lynn County, TX R+61
- Cook County, MN D+32
- Norton County, KS R+71
- Cherry County, NE R+67
- Dixon County, NE R+56
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.