Kittitas County leans slightly Republican by roughly 8 points: about 46% of voters vote Democratic and 54% Republican.
About 70% of adults in Kittitas County typically vote, above the U.S. average of about 62%. Among adults in Kittitas County, ~32% vote Democratic, ~38% Republican, and ~30% don't vote. The map below shows estimated turnout by block group.
How Kittitas County compares
Among counties within 50 miles, Kittitas County leans more Republican than 1 of 3 neighbors.
Kittitas County runs about 26 points more Republican than Washington as a whole. Washington leans Democratic overall, while Kittitas County is one of the few Republican-leaning pockets.
Politics vary noticeably by city within Kittitas County. The east side runs the most Democratic (D+7) and the southwest side runs the most Republican (R+36), a spread of about 43 points.
Why Kittitas 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 Kittitas County, not a ranked or complete list of what matters most.
Kittitas County votes against the grain of Washington. Washington leans Democratic overall, while Kittitas County runs about 26 points more Republican.
High-school completion and voter turnout
Places with high-school-completion-heavy adults tend to turn out at a higher rate; Kittitas County, WA sits in the top quarter nationally on this measure.
Why turnout in Kittitas County looks the way it does
Areas with high high-school completion turn out at higher rates. About 94% of adults in Kittitas County have completed high school, above 85% of counties. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Chelan County, WA R+12
- Douglas County, WA R+25
- Yakima County, WA R+6
- Grant County, WA R+34
- Adams County, WA R+31
- King County, WA D+45
- Pierce County, WA D+12
- Benton County, WA R+21
- Franklin County, WA R+16
- Klickitat County, WA R+11
Counties with Similar Populations
- Delaware County, NY R+17
- Douglas County, WI Even
- Callaway County, MO R+43
- Kendall County, TX R+49
- Holmes County, OH R+72
- Barren County, KY R+50
- Shenandoah County, VA R+44
- Jefferson County, PA R+55
- Ravalli County, MT R+43
- Lawrence County, TN R+68
Sources and methodology
Precinct-level voting records used to fit the model come from Washington 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.