Olive Branch is a true toss-up. About 50% of voters here vote Democratic and 50% Republican.
About 79% of adults in Olive Branch typically vote, above the U.S. average of about 62%. Among adults in Olive Branch, ~40% vote Democratic, ~40% Republican, and ~20% don't vote. The map below shows estimated turnout by block group.
How Olive Branch compares
Among cities within 25 miles, Olive Branch sits roughly in the middle of the political spectrum, with 6 neighbors leaning further in the place's direction and 69 leaning the other way.
Olive Branch runs about 11 points more Republican than Illinois as a whole.
Why Olive Branch leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in Olive Branch. The lean here lands roughly where demographic data alone would predict.
Paved land cover and Republican lean
Places with little paved surface tend to lean Republican; Olive Branch, IL sits in the bottom quarter nationally on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.
Why turnout in Olive Branch looks the way it does
Turnout in Olive Branch sits close to the national pattern. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Thebes, IL R+32
- Tamms, IL R+26
- Gale, IL R+54
- Commerce, MO R+69
- North Mounds, IL Even
- Pulaski, IL R+22
- Scott City, MO R+59
- Mounds, IL D+27
Cities with Similar Populations
- Three Forks, VA R+49
- West Days, MS R+60
- Monteview, ID R+82
- Groveland, IN R+60
- Mercer, TN R+11
- Glenfield, NC R+6
- Hagewood, LA R+69
- Salsbury Cove, ME D+46
- Lynx, OH R+64
- Gayville, SD R+54
Sources and methodology
Precinct-level voting records used to fit the model come from Illinois State Board 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.