Decatur leans heavily Republican by roughly 40 points: about 30% of voters vote Democratic and 70% Republican.
About 62% of adults in Decatur typically vote, near the U.S. average of about 62%. Among adults in Decatur, ~19% vote Democratic, ~43% Republican, and ~38% don't vote. The map below shows estimated turnout by block group.
How Decatur compares
Among cities within 25 miles, Decatur leans more Republican than 22 of 53 neighbors.
Decatur runs about 17 points more Republican than Mississippi as a whole.
Politics vary noticeably by neighborhood within Decatur. The northeast side is the most Republican-leaning (R+83) and the south side is the least Republican-leaning (R+18), a spread of about 65 points.
Why Decatur 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 Decatur, not a ranked or complete list of what matters most.
Decatur votes Republican even though it is densely developed (about 21%, modestly above the Mississippi average of 15%). State and regional patterns outweigh the Democratic lean that density usually predicts here.
Cancer-screening access and voter turnout
Places with low colon-cancer-screening access tend to turn out at a lower rate; Decatur, MS sits in the bottom quarter nationally on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.
Why turnout in Decatur looks the way it does
Low high-school completion lines up with lower turnout, and about 86% of adults in Decatur have completed high school, below 75% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Little Rock, MS R+81
- Newton, MS D+23
- Conehatta, MS R+31
- Hickory, MS R+51
- Stratton, MS R+72
- Perdue, MS R+82
- Lawrence, MS R+31
- Union, MS R+64
- Calhoun, MS R+17
- Prospect, MS R+85
Cities with Similar Populations
- Santee, SC D+20
- Williamsburg, IA R+35
- York Springs, PA R+47
- Mertztown, PA R+35
- Lansford, PA R+25
- Juno Beach, FL R+32
- Leonardo, NJ R+22
- Lake Mathews, CA R+30
- Decatur, MI R+26
- Soap Lake, WA R+47
All Local Stats
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Sources and methodology
Precinct-level voting records used to fit the model come from Mississippi Secretary of State, 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.