Marengo, WI Political Map | Democrat & Republican Areas in Marengo

Marengo leans Republican by roughly 20 points: about 40% of voters vote Democratic and 60% Republican.

 
Marengo, WI block-group political-lean map
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About 70% of adults in Marengo typically vote, above the U.S. average of about 62%. Among adults in Marengo, ~28% vote Democratic, ~42% Republican, and ~30% don't vote. The map below shows estimated turnout by block group.

Marengo, WI block-group voter-turnout map
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Lower turnout Higher turnout
Colorblind friendly off

How Marengo compares

Among cities within 25 miles, Marengo leans more Republican than 14 of 25 neighbors.

Marengo runs about 18 points more Republican than Wisconsin as a whole.

Politics vary noticeably by neighborhood within Marengo. The northeast side runs the most Democratic (D+45) and the northwest side runs the most Republican (R+39), a spread of about 85 points.

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

Rural areas vote Republican. About 4% of residents in Marengo live in densely developed areas, about 20 points below the Wisconsin average of 24%.

Walkability and Republican lean

Places with a low walkability score tend to lean Republican; Marengo, WI sits in the bottom quarter 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 Marengo looks the way it does

Areas with high high-school completion turn out at higher rates. About 97% of adults in Marengo have completed high school, about 7 points above the U.S. average of 90%. Learn more about the findings and methodology on the political spectrum map.

Cities with Similar Populations

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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.