Otis Orchards, WA Political Map | Democrat & Republican Areas in Otis Orchards

Otis Orchards leans heavily Republican by roughly 34 points: about 33% of voters vote Democratic and 67% Republican.

 
Otis Orchards, WA block-group political-lean map
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About 89% of adults in Otis Orchards typically vote, above the U.S. average of about 62%. Among adults in Otis Orchards, ~30% vote Democratic, ~60% Republican, and ~10% don't vote. The map below shows estimated turnout by block group.

Otis Orchards, WA block-group voter-turnout map
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How Otis Orchards compares

Among cities within 25 miles, Otis Orchards leans more Republican than 16 of 50 neighbors.

Otis Orchards runs about 52 points more Republican than Washington as a whole. Washington leans Democratic overall, while Otis Orchards is one of the few Republican-leaning pockets.

Politics vary noticeably by neighborhood within Otis Orchards. The northeast side is the most Republican-leaning (R+40) and the southwest side is the least Republican-leaning (R+15), a spread of about 25 points.

Why Otis Orchards 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 Otis Orchards, not a ranked or complete list of what matters most.

Otis Orchards votes Republican even though it is densely developed (about 46%, modestly above the Washington average of 41%). State and regional patterns outweigh the Democratic lean that density usually predicts here. A high family-household share predicts Republican voting, and about 75% of households in Otis Orchards are family households, above 77% of cities. Otis Orchards runs against the grain of Washington, a Republican-leaning pocket in a Democratic-leaning state.

Paved land cover and Democratic lean

Places with extensive paved surfaces tend to lean Democratic; Otis Orchards, WA sits in the top quarter nationally on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.

Why turnout in Otis Orchards looks the way it does

Areas with strong routine healthcare access turn out at higher rates. Otis Orchards 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 67%, about 7 points above the U.S. average of 60%. Learn more about the findings and methodology on the political spectrum map.

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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.