Asotin County leans Republican by roughly 28 points: about 36% of voters vote Democratic and 64% Republican.
About 72% of adults in Asotin County typically vote, above the U.S. average of about 62%. Among adults in Asotin County, ~26% vote Democratic, ~46% Republican, and ~28% don't vote. The map below shows estimated turnout by block group.
How Asotin County compares
Among counties within 50 miles, Asotin County leans more Republican than 2 of 7 neighbors.
Asotin County runs about 47 points more Republican than Washington as a whole. Washington leans Democratic overall, while Asotin County is one of the few Republican-leaning pockets.
Politics vary noticeably by city within Asotin County. The southeast side is the most Republican-leaning (R+45) and the northeast side is the least Republican-leaning (R+18), a spread of about 27 points.
Why Asotin 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 Asotin County, not a ranked or complete list of what matters most.
Asotin County votes Republican even though it is densely developed (about 67%, well above the Washington average of 41%). Here an older population outweighs the Democratic lean that density usually predicts. Asotin County runs against the grain of Washington, a Republican-leaning pocket in a Democratic-leaning state.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; Asotin County, WA 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 Asotin County looks the way it does
Turnout in Asotin County sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Nez Perce County, ID R+35
- Garfield County, WA R+58
- Latah County, ID R+4
- Whitman County, WA D+16
- Lewis County, ID R+60
- Clearwater County, ID R+64
- Columbia County, WA R+51
- Idaho County, ID R+64
- Benewah County, ID R+60
- Wallowa County, OR R+20
Counties with Similar Populations
- Nobles County, MN R+28
- Saunders County, NE R+46
- Bibb County, AL R+57
- Leelanau County, MI Even
- Meigs County, OH R+58
- Waynesboro City, VA R+9
- Mahaska County, IA R+38
- Sumner County, KS R+50
- Lee County, VA R+64
- Grant Parish, LA R+77
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.