Roslyn is a true toss-up. About 49% of voters here vote Democratic and 51% Republican.
About 96% of adults in Roslyn typically vote, above the U.S. average of about 62%. Among adults in Roslyn, ~47% vote Democratic, ~49% Republican, and ~4% don't vote. The map below shows estimated turnout by block group.
How Roslyn compares
Among cities within 25 miles, Roslyn sits roughly in the middle of the political spectrum, with 0 neighbors leaning further in the place's direction and 10 leaning the other way.
Roslyn runs about 20 points more Republican than Washington as a whole. Washington leans Democratic overall, while Roslyn sits closer to the political middle.
Politics vary noticeably by neighborhood within Roslyn. The east side runs the most Democratic (Even) and the northeast side runs the most Republican (R+13), a spread of about 14 points.
Why Roslyn 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 Roslyn, not a ranked or complete list of what matters most.
Roslyn votes against the grain of Washington. Washington leans Democratic overall, while Roslyn runs about 20 points more Republican.
High-school completion, uninsured rate, and voter turnout
Places that combine high-school-completion-heavy adults and a low uninsured rate tend to turn out at a higher rate, as Roslyn, WA does.
Why turnout in Roslyn looks the way it does
Areas with high high-school completion turn out at higher rates. About 97% of adults in Roslyn have completed high school, about 5 points above the Washington average of 91%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Ronald, WA R+16
- South Cle Elum, WA R+24
- Cle Elum, WA R+19
- Teanaway, WA R+24
- Easton, WA R+29
- Stampede, WA R+20
- Liberty, WA R+25
- Thorp, WA R+33
- Hyak, WA R+17
- Snoqualmie Pass, WA R+13
Cities with Similar Populations
- Victor, IA R+46
- Tiltonsville, OH R+36
- Browntown, WI R+33
- Russell, IA R+53
- Prudhoe Bay, AK R+13
- Friend, NE R+60
- Kawaihae, HI D+29
- Columbia, VA R+33
- Bennington, IN R+65
- Point Venture, TX R+5
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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.