Long Key leans heavily Republican by roughly 32 points: about 34% of voters vote Democratic and 66% Republican.
About 88% of adults in Long Key typically vote, above the U.S. average of about 62%. Among adults in Long Key, ~30% vote Democratic, ~58% Republican, and ~12% don't vote. The map below shows estimated turnout by block group.
How Long Key compares
Among cities within 25 miles, Long Key leans more Republican than 2 of 6 neighbors.
Long Key runs about 19 points more Republican than Florida as a whole.
Why Long Key leans the way it does
This analysis examined 14,881 data points per city to find what predicts political lean and turnout. The items below are a few correlations that stood out for Long Key, not a ranked or complete list of what matters most.
Rural areas vote Republican. About 2% of residents in Long Key live in densely developed areas, about 55 points below the Florida average of 57%.
Never-married share, developed land, and voter turnout
Places that combine a low never-married share and a rural land-use pattern tend to turn out at a higher rate, as Long Key, FL does.
Why turnout in Long Key looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Long Key is in the top quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 63%, above 58% of cities. High high-school completion lines up with higher turnout, and about 98% of adults in Long Key have completed high school, above 95% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Layton, FL R+32
- Key Colony Beach, FL R+35
- Marathon, FL R+24
- Islamorada, FL R+39
- Tavernier, FL R+32
- Big Pine Key, FL R+29
- Key Largo, FL R+25
- Summerland Key, FL R+27
Cities with Similar Populations
- Daysville, TN R+69
- South Salem, IN R+63
- Lamont, WA R+75
- Interior, SD R+65
- Wilsontown, WV R+68
- Vantage, WA R+41
- Caledonia Park, PA R+45
- Swedona, IL R+37
- Premier, WV R+70
- McAlister, NM R+76
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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.