Monroe County leans slightly Republican by roughly 14 points: about 43% of voters vote Democratic and 57% Republican.
About 71% of adults in Monroe County typically vote, above the U.S. average of about 62%. Among adults in Monroe County, ~31% vote Democratic, ~40% Republican, and ~29% don't vote. The map below shows estimated turnout by block group.
How Monroe County compares
Politically, Monroe County sits close to the rest of Florida.
Politics vary noticeably by city within Monroe County. The southwest side runs the most Democratic (Even) and the east side runs the most Republican (R+41), a spread of about 43 points.
Why Monroe County leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in Monroe County. The lean here lands roughly where demographic data alone would predict.
Cancer-screening access and voter turnout
Places with high colon-cancer-screening access tend to turn out at a higher rate; Monroe County, FL sits above the national average on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.
Why turnout in Monroe County looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Monroe 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
- Miami-Dade County, FL R+8
- Collier County, FL R+20
- Broward County, FL D+20
- Lee County, FL R+19
- Hendry County, FL R+26
- Palm Beach County, FL D+5
- Glades County, FL R+47
- Charlotte County, FL R+33
- DeSoto County, FL R+35
- Okeechobee County, FL R+46
Counties with Similar Populations
- Coryell County, TX R+27
- St. Landry Parish, LA R+11
- Indiana County, PA R+34
- Lee County, MS R+26
- Midland County, MI R+15
- Barrow County, GA R+36
- Bullitt County, KY R+48
- Bartholomew County, IN R+30
- Henderson County, TX R+60
- Lewis County, WA R+29
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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.