Madison County leans slightly Republican by roughly 6 points: about 47% of voters vote Democratic and 53% Republican.
About 68% of adults in Madison County typically vote, above the U.S. average of about 62%. Among adults in Madison County, ~32% vote Democratic, ~36% Republican, and ~32% don't vote. The map below shows estimated turnout by block group.
How Madison County compares
Among counties within 50 miles, Madison County leans more Republican than 5 of 10 neighbors.
Madison County runs about 18 points more Democratic than Mississippi as a whole.
Politics vary noticeably by city within Madison County. The north side runs the most Democratic (D+59) and the west side runs the most Republican (R+44), a spread of about 103 points.
Why Madison County leans the way it does
This analysis examined 14,881 data points per county to find what predicts political lean and turnout. The items below are a few correlations that stood out for Madison County, not a ranked or complete list of what matters most.
Madison County votes Republican even though it is densely developed (about 48%, far above the Mississippi average of 15%). State and regional patterns outweigh the Democratic lean that density usually predicts here.
Preventive-care access and voter turnout
Places with limited routine preventive-care access tend to turn out at a lower rate; Madison County, MS sits in the bottom tenth nationally on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.
Why turnout in Madison County looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Madison County 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 15%, about 6 points above the Mississippi average of 9%. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Rankin County, MS R+42
- Hinds County, MS D+52
- Yazoo County, MS D+17
- Scott County, MS R+18
- Leake County, MS R+12
- Holmes County, MS D+60
- Simpson County, MS R+29
- Warren County, MS D+6
- Copiah County, MS D+6
- Attala County, MS R+13
Counties with Similar Populations
- Eaton County, MI R+8
- Pennington County, SD R+28
- Bartow County, GA R+46
- Miami County, OH R+42
- Terrebonne Parish, LA R+42
- Warren County, NJ R+16
- LaSalle County, IL R+21
- Bradley County, TN R+48
- St. Lawrence County, NY R+18
- Hanover County, VA R+21
All Local Stats
Home Services
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.