Jefferson County leans Republican by roughly 20 points: about 40% of voters vote Democratic and 60% Republican.
About 71% of adults in Jefferson County typically vote, above the U.S. average of about 62%. Among adults in Jefferson County, ~28% vote Democratic, ~43% Republican, and ~29% don't vote. The map below shows estimated turnout by block group.
How Jefferson County compares
Among counties within 50 miles, Jefferson County leans more Republican than 6 of 11 neighbors.
Jefferson County runs about 7 points more Republican than Florida as a whole.
Politics vary noticeably by city within Jefferson County. The southeast side runs the most Democratic (D+5) and the west side runs the most Republican (R+37), a spread of about 43 points.
Why Jefferson County leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in Jefferson County. 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; Jefferson County, FL 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 Jefferson County looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Jefferson County is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Leon County, FL D+26
- Thomas County, GA R+18
- Madison County, FL R+18
- Brooks County, GA R+23
- Grady County, GA R+29
- Wakulla County, FL R+46
- Taylor County, FL R+54
- Gadsden County, FL D+28
- Lowndes County, GA Even
- Colquitt County, GA R+36
Counties with Similar Populations
- Cannon County, TN R+69
- San Juan County, UT R+19
- Moultrie County, IL R+54
- Mills County, IA R+33
- Harrison County, OH R+56
- Carbon County, WY R+57
- Clay County, AR R+62
- Las Animas County, CO R+13
- Fulton County, PA R+70
- Livingston County, MO R+52
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Sources and methodology
Precinct-level voting records used to fit the model come from Florida Division 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.