Merritt Island, FL Political Map | Democrat & Republican Areas in Merritt Island

By the BestNeighborhood data science team. Last updated May 2026.

Merritt Island leans Republican by roughly 26 points: about 37% of voters vote Democratic and 63% Republican.

 

About 78% of adults in Merritt Island typically vote, above the U.S. average of about 62%. Among adults in Merritt Island, ~29% vote Democratic, ~49% Republican, and ~22% don't vote. The map below shows estimated turnout by block group.

How Merritt Island compares

Among cities within 25 miles, Merritt Island leans more Republican than 12 of 18 neighbors.

Merritt Island runs about 13 points more Republican than Florida as a whole.

Politics vary noticeably by neighborhood within Merritt Island. The north side is the most split-leaning (R+35) and the west side is the least split-leaning (Even), a spread of about 34 points.

Why Merritt Island 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 Merritt Island, not a ranked or complete list of what matters most.

Merritt Island votes Republican even though it is densely developed (about 48%, modestly below the Florida average of 57%). Here an older population outweighs the Democratic lean that density usually predicts.

Cancer-screening access and voter turnout

Places with high colon-cancer-screening access tend to turn out at a higher rate; Merritt Island, FL sits in the top tenth nationally on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.

Why turnout in Merritt Island looks the way it does

Areas with strong routine healthcare access turn out at higher rates. Merritt Island 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 62%, about 6 points above the Florida average of 56%. Learn more about the findings and methodology on the political spectrum map.

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.