Nine Mile Falls leans heavily Republican by roughly 38 points: about 31% of voters vote Democratic and 69% Republican.
About 93% of adults in Nine Mile Falls typically vote, above the U.S. average of about 62%. Among adults in Nine Mile Falls, ~29% vote Democratic, ~64% Republican, and ~7% don't vote. The map below shows estimated turnout by block group.
How Nine Mile Falls compares
Among cities within 25 miles, Nine Mile Falls leans more Republican than 25 of 38 neighbors.
Nine Mile Falls runs about 56 points more Republican than Washington as a whole. Washington leans Democratic overall, while Nine Mile Falls is one of the few Republican-leaning pockets.
Politics vary noticeably by neighborhood within Nine Mile Falls. The northeast side is the most Republican-leaning (R+46) and the southeast side is the least Republican-leaning (R+12), a spread of about 33 points.
Why Nine Mile Falls leans the way it does
This analysis examined 14,881 data points per city to find what predicts political lean and turnout. The items below are a few correlations that stood out for Nine Mile Falls, not a ranked or complete list of what matters most.
Nine Mile Falls votes against the grain of Washington. Washington leans Democratic overall, while Nine Mile Falls runs about 56 points more Republican. Dense places usually vote Democratic, but Nine Mile Falls runs against that pattern. A high family-household share predicts Republican voting, and about 81% of households in Nine Mile Falls are family households, above 91% of cities.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; Nine Mile Falls, WA sits in the top quarter nationally 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 Nine Mile Falls looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Nine Mile Falls is in the top quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 70%, about 10 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 93% of households in Nine Mile Falls own their home, compared to around 74% in nearby cities. High high-school completion lines up with higher turnout, and about 97% of adults in Nine Mile Falls have completed high school, above 88% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Seven Mile, WA R+32
- Tumtum, WA R+46
- Denison, WA R+41
- Country Homes, WA D+5
- Long Lake, WA R+42
- Fairchild Air Force Base, WA R+37
- Colbert, WA R+31
- Airway Heights, WA R+16
- Deer Park, WA R+38
- Ford, WA D+7
Cities with Similar Populations
- Del Aire, CA D+28
- Newton Falls, OH R+36
- Honesdale, PA R+30
- Oak Ridge, NJ R+27
- Dudley, NC D+5
- East Troy, WI R+23
- Clyde, NC R+38
- Acushnet, MA R+18
- Williamston, MI R+2
- Woodstock, MD D+40
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.