Spring Hill, TN Political Map | Democrat & Republican Areas in Spring Hill

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

Spring Hill leans heavily Republican by roughly 34 points: about 33% of voters vote Democratic and 67% Republican.

 

About 76% of adults in Spring Hill typically vote, above the U.S. average of about 62%. Among adults in Spring Hill, ~25% vote Democratic, ~51% Republican, and ~24% don't vote. The map below shows estimated turnout by block group.

How Spring Hill compares

Among cities within 25 miles, Spring Hill leans more Republican than 7 of 64 neighbors.

Spring Hill runs about 4 points more Republican than Tennessee as a whole.

Politics vary noticeably by neighborhood within Spring Hill. The southwest side is the most Republican-leaning (R+46) and the north side is the least Republican-leaning (R+28), a spread of about 18 points.

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

Spring Hill votes Republican even though it is densely developed (about 64%, far above the Tennessee average of 21%). State and regional patterns outweigh the Democratic lean that density usually predicts here. A high family-household share predicts Republican voting, and about 79% of households in Spring Hill are family households, above 86% of cities.

High-school completion and voter turnout

Places with high-school-completion-heavy adults tend to turn out at a higher rate; Spring Hill, TN sits in the top quarter nationally on this measure.

Why turnout in Spring Hill looks the way it does

Areas with high high-school completion turn out at higher rates. About 96% of adults in Spring Hill have completed high school, about 9 points above the Tennessee average of 88%. Learn more about the findings and methodology on the political spectrum map.

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Sources and methodology

Precinct-level voting records used to fit the model come from Tennessee Secretary of State, Division of 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.