38621 leans Democratic by roughly 30 points: about 65% of voters vote Democratic and 35% Republican.
About 63% of adults in 38621 typically vote, near the U.S. average of about 62%. Among adults in 38621, ~41% vote Democratic, ~22% Republican, and ~37% don't vote. The map below shows estimated turnout by block group.
How 38621 compares
Among zip codes within 15 miles, 38621 leans more Democratic than 2 of 4 neighbors.
38621 runs about 53 points more Democratic than Mississippi as a whole. Mississippi leans Republican overall, while 38621 is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within 38621. The southwest side runs the most Democratic (D+81) and the south side runs the most Republican (R+16), a spread of about 97 points.
Why 38621 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 38621, not a ranked or complete list of what matters most.
38621 votes against the grain of Mississippi. Mississippi leans Republican overall, while 38621 runs about 53 points more Democratic. A high never-married share predicts Democratic voting, and about 44% of adults in 38621 have never been married, above 91% of zip codes.
Park access and Republican lean
Places with low park coverage tend to lean Republican; 38621, MS sits in the bottom tenth nationally on this measure. Park access does not change how people vote; it tends to track denser, higher-income areas.
Why turnout in 38621 looks the way it does
Limited routine healthcare access lines up with lower turnout, and 38621 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.