Harlem leans Republican by roughly 24 points: about 38% of voters vote Democratic and 62% Republican.
About 87% of adults in Harlem typically vote, above the U.S. average of about 62%. Among adults in Harlem, ~33% vote Democratic, ~54% Republican, and ~13% don't vote. The map below shows estimated turnout by block group.
How Harlem compares
Among cities within 25 miles, Harlem leans more Republican than 37 of 91 neighbors.
Harlem runs about 13 points more Republican than Ohio as a whole.
Politics vary noticeably by neighborhood within Harlem. The east side is the most Republican-leaning (R+32) and the west side is the least Republican-leaning (R+14), a spread of about 18 points.
Why Harlem 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 Harlem, not a ranked or complete list of what matters most.
Areas with many family households vote Republican. About 79% of households in Harlem are family households, about 12 points above the U.S. average of 67%.
Food insecurity and voter turnout
Places with low food insecurity tend to turn out at a higher rate; Harlem, OH sits in the bottom tenth nationally on this measure. Food insecurity does not directly drive turnout; it reflects economic hardship, which lines up with lower voting.
Why turnout in Harlem looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Harlem 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 76%, about 16 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 92% of households in Harlem own their home, about 16 points above the U.S. average of 75%. High high-school completion lines up with higher turnout, and about 96% of adults in Harlem have completed high school, above 81% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Center Village, OH R+35
- New Albany, OH D+11
- Westerville, OH D+15
- Galena, OH R+15
- South Condit, OH R+45
- Minerva Park, OH D+30
- Jersey, OH R+39
- Gahanna, OH D+21
- Sunbury, OH R+29
- Lewis Center, OH D+8
Cities with Similar Populations
- Rockton, PA R+61
- Footville, WI R+22
- Brady Lake, OH R+7
- Raywick, KY R+67
- Amesville, OH R+23
- Plattin, MO R+57
- Bellemont, OK R+68
- Pitts, GA R+72
- Huffer, GA R+75
- Dover, OK R+73
All Local Stats
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Sources and methodology
Precinct-level voting records used to fit the model come from Ohio 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.