Bay City, WA Political Map | Democrat & Republican Areas in Bay City

Bay City leans Republican by roughly 16 points: about 42% of voters vote Democratic and 58% Republican.

 
Bay City, WA block-group political-lean map
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About 82% of adults in Bay City typically vote, above the U.S. average of about 62%. Among adults in Bay City, ~34% vote Democratic, ~48% Republican, and ~18% don't vote. The map below shows estimated turnout by block group.

Bay City, WA block-group voter-turnout map
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How Bay City compares

Among cities within 25 miles, Bay City leans more Republican than 18 of 30 neighbors.

Bay City runs about 35 points more Republican than Washington as a whole. Washington leans Democratic overall, while Bay City is one of the few Republican-leaning pockets.

Politics vary noticeably by neighborhood within Bay City. The northeast side is the most Republican-leaning (R+30) and the southeast side is the least Republican-leaning (R+13), a spread of about 18 points.

Why Bay City 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 Bay City, not a ranked or complete list of what matters most.

Rural areas vote Republican. About 3% of residents in Bay City live in densely developed areas, about 38 points below the Washington average of 41%. Low college attainment predicts Republican voting, and Bay City sits in the bottom quarter (about 15%, below 77% of cities). Bay City runs against the grain of Washington, a Republican-leaning pocket in a Democratic-leaning state.

Developed land and Republican lean

Places with a rural land-use pattern tend to lean Republican; Bay City, WA sits in the bottom tenth nationally on this measure. Developed land does not change how people vote; it mostly reflects how urban a place is.

Why turnout in Bay City looks the way it does

Turnout in Bay City 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.

Cities with Similar Populations

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.