South Campus is a Democratic stronghold. About 76% of voters here vote Democratic and 24% Republican.
About 74% of adults in South Campus typically vote, above the U.S. average of about 62%. Among adults in South Campus, ~56% vote Democratic, ~18% Republican, and ~26% don't vote. The map below shows estimated turnout by block group.
How South Campus compares
Among neighborhoods within 5 miles, South Campus is the least Democratic-leaning.
South Campus runs about 52 points more Democratic than Wisconsin as a whole. Wisconsin is roughly evenly split, and South Campus sits clearly on the Democratic side.
Why South Campus leans the way it does
This analysis examined 14,881 data points per neighborhood to find what predicts political lean and turnout. The items below are a few correlations that stood out for South Campus, not a ranked or complete list of what matters most.
Dense areas vote Democratic. More than 99% of residents in South Campus live in densely developed areas, about 64 points above the U.S. average of 36%. A high never-married share predicts Democratic voting, and about 97% of adults in South Campus have never been married, in the top fraction of neighborhoods. South Campus runs against the grain of Wisconsin, a Democratic-leaning outlier in a roughly evenly split state.
Population density and Democratic lean
Places with high population density tend to lean Democratic; South Campus, Madison, WI sits in the top tenth nationally on this measure.
Why turnout in South Campus looks the way it does
Turnout in South Campus 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 Neighborhoods
- Greenbush, Madison, WI D+71
- Capitol, Madison, WI D+61
- Regent, Madison, WI D+75
- Dudgeon-Monroe, Madison, WI D+87
- Tenney-Lapham, Madison, WI D+82
- Sunset Village, Madison, WI D+84
- Marquette, Madison, WI D+86
- Moorland-Rimrock, Madison, WI D+54
- Midvale Heights, Madison, WI D+76
- Hill Farms-University Neighborh, Madison, WI D+81
Neighborhoods with Similar Populations
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.