Waterville leans heavily Republican by roughly 38 points: about 31% of voters vote Democratic and 69% Republican.
About 67% of adults in Waterville typically vote, near the U.S. average of about 62%. Among adults in Waterville, ~21% vote Democratic, ~46% Republican, and ~33% don't vote. The map below shows estimated turnout by block group.
How Waterville compares
Among cities within 25 miles, Waterville leans more Republican than 16 of 22 neighbors.
Waterville runs about 56 points more Republican than Washington as a whole. Washington leans Democratic overall, while Waterville is one of the few Republican-leaning pockets.
Politics vary noticeably by neighborhood within Waterville. The southeast side is the most Republican-leaning (R+57) and the west side is the least Republican-leaning (R+32), a spread of about 25 points.
Why Waterville 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 Waterville, not a ranked or complete list of what matters most.
Waterville votes Republican even though it is densely developed (about 52%, modestly above the Washington average of 41%). State and regional patterns outweigh the Democratic lean that density usually predicts here. Low college attainment predicts Republican voting, and Waterville sits in the bottom quarter (about 13%, below 85% of cities). Waterville runs against the grain of Washington, a Republican-leaning pocket in a Democratic-leaning state.
Cancer-screening access and voter turnout
Places with high colon-cancer-screening access tend to turn out at a higher rate; Waterville, WA sits in the top quarter nationally on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.
Why turnout in Waterville looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Waterville 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 65%, above 67% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Orondo, WA R+27
- Entiat, WA R+35
- Ardenvoir, WA R+33
- Farmer, WA R+57
- Chelan Falls, WA R+21
- Chelan, WA R+21
- Lakeside, WA R+27
- Withrow, WA R+50
- Sunnyslope, WA R+21
- Palisades, WA R+53
Cities with Similar Populations
- Tonica, IL R+40
- Castleberry, AL R+17
- Mineral Springs, AR D+14
- Cumberland, OH R+63
- Bingham, ME R+31
- Langhorne Manor, PA D+3
- Macon, NC R+19
- Orlinda, TN R+63
- Casco, WI R+44
- Newfound, NC R+36
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.