Burlington County leans Democratic by roughly 16 points: about 58% of voters vote Democratic and 42% Republican.
About 76% of adults in Burlington County typically vote, above the U.S. average of about 62%. Among adults in Burlington County, ~44% vote Democratic, ~32% Republican, and ~24% don't vote. The map below shows estimated turnout by block group.
How Burlington County compares
Among counties within 50 miles, Burlington County leans more Democratic than 11 of 17 neighbors.
Burlington County runs about 10 points more Democratic than New Jersey as a whole.
Politics vary noticeably by city within Burlington County. The north side runs the most Democratic (D+37) and the southeast side runs the most Republican (R+20), a spread of about 57 points.
Why Burlington County leans the way it does
This analysis examined 14,881 data points per county to find what predicts political lean and turnout. The items below are a few correlations that stood out for Burlington County, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 66% of residents in Burlington County live in densely developed areas, about 29 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and Burlington County sits in the top quarter (about 42%, above 93% of counties).
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; Burlington County, NJ sits in the top tenth nationally on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in Burlington County looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Burlington County 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 68%, about 8 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 94% of adults in Burlington County have completed high school, above 86% of counties. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Camden County, NJ D+30
- Philadelphia County, PA D+56
- Mercer County, NJ D+38
- Bucks County, PA Even
- Gloucester County, NJ R+2
- Delaware County, PA D+27
- Montgomery County, PA D+21
- Ocean County, NJ R+39
- Salem County, NJ R+12
- Cumberland County, NJ D+7
Counties with Similar Populations
- Virginia Beach City, VA D+9
- Hampden County, MA D+14
- East Baton Rouge Parish, LA D+23
- York County, PA R+21
- Solano County, CA D+21
- Seminole County, FL R+5
- Tulare County, CA R+12
- Santa Barbara County, CA D+26
- Onondaga County, NY D+21
- Knox County, TN R+13
Sources and methodology
Precinct-level voting records used to fit the model come from New Jersey 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.