Olive Branch leans slightly Republican by roughly 12 points: about 44% of voters vote Democratic and 56% Republican.
About 72% of adults in Olive Branch typically vote, above the U.S. average of about 62%. Among adults in Olive Branch, ~32% vote Democratic, ~40% Republican, and ~28% don't vote. The map below shows estimated turnout by block group.
How Olive Branch compares
Among cities within 25 miles, Olive Branch leans more Republican than 11 of 43 neighbors.
Olive Branch runs about 11 points more Democratic than Mississippi as a whole.
Politics vary noticeably by neighborhood within Olive Branch. The north side runs the most Democratic (D+8) and the south side runs the most Republican (R+40), a spread of about 47 points.
Why Olive Branch 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 Olive Branch, not a ranked or complete list of what matters most.
Olive Branch votes Republican even though it is densely developed (about 67%, far above the Mississippi average of 15%). State and regional patterns outweigh the Democratic lean that density usually predicts here. A high family-household share predicts Republican voting, and about 75% of households in Olive Branch are family households, above 77% of cities.
Paved land cover and Democratic lean
Places with extensive paved surfaces tend to lean Democratic; Olive Branch, MS sits in the top tenth 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
Areas with limited routine healthcare access turn out at lower rates. Olive Branch is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 14%, about 6 points above the Mississippi average of 9%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Ingrams Mill, MS R+70
- Lewisburg, MS R+68
- Nesbit, MS R+43
- Southaven, MS R+7
- Germantown, TN R+19
- Byhalia, MS R+32
- Collierville, TN R+20
- Cockrum, MS R+70
- Horn Lake, MS D+21
- Hernando, MS R+55
Cities with Similar Populations
- New Iberia, LA R+24
- Evans, GA R+27
- Asheboro, NC R+33
- Glendora, CA Even
- Minnetonka, MN D+33
- Morgan Hill, CA D+13
- Collierville, TN R+20
- Vero Beach, FL R+27
- Brookline, MA D+72
- Greenwood, SC R+10
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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.