Port Washington, WI Political Map | Democrat & Republican Areas in Port Washington

By the BestNeighborhood data science team. Last updated May 2026.

Port Washington leans slightly Republican by roughly 10 points: about 45% of voters vote Democratic and 55% Republican.

 

About 88% of adults in Port Washington typically vote, above the U.S. average of about 62%. Among adults in Port Washington, ~40% vote Democratic, ~48% Republican, and ~12% don't vote. The map below shows estimated turnout by block group.

How Port Washington compares

Among cities within 25 miles, Port Washington leans more Republican than 16 of 65 neighbors.

Port Washington runs about 9 points more Republican than Wisconsin as a whole.

Politics vary noticeably by neighborhood within Port Washington. The southeast side runs the most Democratic (D+4) and the northwest side runs the most Republican (R+23), a spread of about 27 points.

Why Port Washington 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 Port Washington, not a ranked or complete list of what matters most.

Port Washington votes Republican even though it is densely developed (about 68%, far above the Wisconsin average of 24%). State and regional patterns outweigh the Democratic lean that density usually predicts here.

Preventive-care access and voter turnout

Places with strong routine preventive-care access tend to turn out at a higher rate; Port Washington, WI sits in the top quarter nationally on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.

Why turnout in Port Washington looks the way it does

Areas with strong routine healthcare access turn out at higher rates. Port Washington 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 68%, about 8 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 97% of adults in Port Washington have completed high school, above 89% of cities. Learn more about the findings and methodology on the political spectrum map.

Sources and methodology

Precinct-level voting records used to fit the model come from Wisconsin Elections Commission, 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.