Riverside leans heavily Republican by roughly 48 points: about 26% of voters vote Democratic and 74% Republican.
About 54% of adults in Riverside typically vote, below the U.S. average of about 62%. Among adults in Riverside, ~14% vote Democratic, ~40% Republican, and ~46% don't vote. The map below shows estimated turnout by block group.
How Riverside compares
Among cities within 25 miles, Riverside is the most Republican-leaning.
Riverside runs about 66 points more Republican than Washington as a whole. Washington leans Democratic overall, while Riverside is one of the few Republican-leaning pockets.
Why Riverside 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 Riverside, not a ranked or complete list of what matters most.
Riverside votes against the grain of Washington. Washington leans Democratic overall, while Riverside runs about 66 points more Republican. Rural areas vote Republican, and Riverside sits in the bottom quarter on density (about 4%, below 82% of cities). Low college attainment predicts Republican voting, and Riverside sits in the bottom quarter (about 8%, below 96% of cities).
Walkability and Republican lean
Places with a low walkability score tend to lean Republican; Riverside, WA sits in the bottom tenth nationally on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in Riverside looks the way it does
Turnout in Riverside sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- North Omak, WA D+15
- Omak, WA R+16
- Conconully, WA R+46
- Synarep, WA R+31
- Tonasket, WA R+41
- Okanogan, WA R+29
- Nighthawk, WA R+43
- Ellisforde, WA R+41
- Malott, WA R+33
- Loomis, WA R+39
Cities with Similar Populations
- Sewickley Hills, PA R+2
- Weeping Water, NE R+47
- Vistula, IN R+58
- Kellogg, IA R+46
- Valentine, IN R+63
- Anita, IA R+46
- Fairgrove, MI R+48
- Afton, IA R+44
- Mooreland, IN R+56
- Altamont, TN R+73
All Local Stats
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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.