Brinnon leans slightly Democratic by roughly 6 points: about 53% of voters vote Democratic and 47% Republican.
About 87% of adults in Brinnon typically vote, above the U.S. average of about 62%. Among adults in Brinnon, ~46% vote Democratic, ~41% Republican, and ~13% don't vote. The map below shows estimated turnout by block group.
How Brinnon compares
Among cities within 25 miles, Brinnon leans more Democratic than 16 of 31 neighbors.
Brinnon runs about 12 points more Republican than Washington as a whole.
Politics vary noticeably by neighborhood within Brinnon. The south side is the most Democratic-leaning (D+12) and the west side is the least Democratic-leaning (Even), a spread of about 11 points.
Why Brinnon leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in Brinnon. The lean here lands roughly where demographic data alone would predict.
Park access and Democratic lean
Places with heavy park coverage tend to lean Democratic; Brinnon, WA sits in the top tenth nationally on this measure. Park access does not change how people vote; it tends to track denser, higher-income areas.
Why turnout in Brinnon looks the way it does
Turnout in Brinnon 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
- Seabeck, WA R+14
- Kitsap Lake, WA R+19
- Bangor Base, WA D+3
- Chico, WA D+19
- Quilcene, WA D+15
- Lilliwaup, WA R+4
- Silverdale, WA D+9
- East Quilcene, WA D+15
- Bremerton, WA D+17
- Keyport, WA D+8
Cities with Similar Populations
- West Plattsburg, NY R+10
- East Chatham, NY D+32
- Quinter, KS R+71
- Vernon Hill, VA R+15
- Sprakers, NY R+45
- Peach Springs, AZ D+59
- Laurys Station, PA R+23
- Smicksburg, PA R+67
- Montezuma, IN R+58
- St. Georges, DE Even
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.