Janeiro leans heavily Republican by roughly 40 points: about 30% of voters vote Democratic and 70% Republican.
About 77% of adults in Janeiro typically vote, above the U.S. average of about 62%. Among adults in Janeiro, ~23% vote Democratic, ~54% Republican, and ~23% don't vote. The map below shows estimated turnout by block group.
How Janeiro compares
Among cities within 25 miles, Janeiro leans more Republican than 38 of 64 neighbors.
Janeiro runs about 37 points more Republican than North Carolina as a whole.
Why Janeiro 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 Janeiro, not a ranked or complete list of what matters most.
Rural areas vote Republican. About 5% of residents in Janeiro live in densely developed areas, about 22 points below the North Carolina average of 27%. A high family-household share predicts Republican voting, and about 75% of households in Janeiro are family households, above 77% of cities.
Developed land and Republican lean
Places with a rural land-use pattern tend to lean Republican; Janeiro, NC sits in the bottom quarter nationally on this measure. Developed land does not change how people vote; it mostly reflects how urban a place is.
Why turnout in Janeiro looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Janeiro 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 59% of cities. Homeowners vote more often than renters, and about 90% of households in Janeiro own their home, above 81% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Oriental, NC R+27
- Arapahoe, NC R+34
- Minnesott Beach, NC R+26
- Merrimon, NC R+26
- South River, NC R+47
- Pamlico, NC R+17
- Stonewall, NC R+39
- Merritt, NC R+29
- Kennel Beach, NC R+62
- Whortonsville, NC R+16
Cities with Similar Populations
- Northland, MI R+35
- Gunsight, TX R+77
- Shibleys Point, MO R+66
- Indian Cove, NY R+36
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Sources and methodology
Precinct-level voting records used to fit the model come from North Carolina State Board 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.