Union is a Republican stronghold. About 19% of voters here vote Democratic and 81% Republican.
About 72% of adults in Union typically vote, above the U.S. average of about 62%. Among adults in Union, ~14% vote Democratic, ~58% Republican, and ~28% don't vote. The map below shows estimated turnout by block group.
How Union compares
Among cities within 25 miles, Union leans more Republican than 26 of 65 neighbors.
Union runs about 33 points more Republican than Tennessee as a whole.
Politics vary noticeably by neighborhood within Union. The northwest side is the most Republican-leaning (R+69) and the southwest side is the least Republican-leaning (R+58), a spread of about 10 points.
Why Union 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 Union, not a ranked or complete list of what matters most.
Car-dependent areas vote Republican. About 85% of residents in Union drive to work alone, about 12 points above the U.S. average of 74%. A high white share with below-average college attainment predicts Republican voting, and Union fits that profile on both counts.
Walkability and Republican lean
Places with a low walkability score tend to lean Republican; Union, TN 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 Union looks the way it does
Turnout in Union 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 Cities
- Dyllis, TN R+65
- Jonesville, TN R+40
- Little Emory, TN R+61
- Coalfield, TN R+67
- Oliver Springs, TN R+58
- Kelley Town, TN R+66
- Harriman, TN R+58
- Windrock, TN R+68
- Petros, TN R+69
- Kingston, TN R+59
Cities with Similar Populations
- Missler, KS R+69
- Zoe, KY R+65
- Sanger, ND R+62
- Center Hill, TN R+74
- Palermo, KS R+59
- East Point, LA R+16
- Naples, IL R+62
- Emery Mill, TN R+70
- Sunnyside, FL R+13
- Eileen, IL R+25
All Local Stats
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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.