39166 leans heavily Republican by roughly 30 points: about 35% of voters vote Democratic and 65% Republican.
About 64% of adults in 39166 typically vote, near the U.S. average of about 62%. Among adults in 39166, ~22% vote Democratic, ~42% Republican, and ~36% don't vote. The map below shows estimated turnout by block group.
How 39166 compares
Among zip codes within 15 miles, 39166 is the most Republican-leaning.
39166 runs about 8 points more Republican than Mississippi as a whole.
Politics vary noticeably by block within 39166. The northwest side is the most Republican-leaning (R+37) and the west side is the least Republican-leaning (R+13), a spread of about 24 points.
Why 39166 leans the way it does
This analysis examined 14,881 data points per zip code to find what predicts political lean and turnout. The items below are a few correlations that stood out for 39166, not a ranked or complete list of what matters most.
Rural areas vote Republican. About 5% of residents in 39166 live in densely developed areas, about 10 points below the Mississippi average of 15%. Low college attainment predicts Republican voting, and 39166 sits in the bottom quarter (about 14%, below 84% of zip codes). A high family-household share predicts Republican voting, and about 76% of households in 39166 are family households, above 82% of zip codes.
Population density and Republican lean
Places with low population density tend to lean Republican; 39166, MS sits in the bottom quarter nationally on this measure.
Why turnout in 39166 looks the way it does
Limited routine healthcare access lines up with lower turnout, and 39166 sits in the bottom quarter on routine-care measures. Learn more about the findings and methodology on the political spectrum map.
Nearby Zip Codes
Zip Codes with Similar Populations
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.