Oakville leans Republican by roughly 24 points: about 38% of voters vote Democratic and 62% Republican.
About 49% of adults in Oakville typically vote, below the U.S. average of about 62%. Among adults in Oakville, ~19% vote Democratic, ~30% Republican, and ~51% don't vote. The map below shows estimated turnout by block group.
How Oakville compares
Among cities within 25 miles, Oakville leans more Republican than 18 of 43 neighbors.
Oakville runs about 41 points more Republican than Washington as a whole. Washington leans Democratic overall, while Oakville is one of the few Republican-leaning pockets.
Why Oakville 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 Oakville, not a ranked or complete list of what matters most.
Areas with low college attainment vote Republican. About 13% of adults in Oakville hold a bachelor's degree, about 21 points below the Washington average of 34%. Oakville runs against the grain of Washington, a Republican-leaning pocket in a Democratic-leaning state.
Population density, never-married share, and Republican lean
Places that combine low population density and a never-married-heavy adult population tend to lean Republican, as Oakville, WA does.
Why turnout in Oakville looks the way it does
Turnout in Oakville sits close to the national pattern. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Porter, WA R+36
- Rochester, WA R+21
- Malone, WA R+35
- Brooklyn, WA R+27
- Galvin, WA R+31
- Saginaw, WA R+19
- Dryad, WA R+42
- South Elma, WA R+34
- Grand Mound, WA R+31
- Doty, WA R+42
Cities with Similar Populations
- Brookfield, OH R+33
- Springfield, MN R+51
- Glenelg, MD D+15
- Clayton, WA R+49
- Wentworth, NC R+50
- Elizabethtown, IN R+60
- Lincoln Heights, OH D+89
- Kimball, NE R+66
- Little Mountain, SC R+50
- Hanna City, IL R+32
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.