Atlantic County, NJ Political Map | Democrat & Republican Areas in Atlantic County

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

Atlantic County is a true toss-up. About 52% of voters here vote Democratic and 48% Republican.

 

About 69% of adults in Atlantic County typically vote, above the U.S. average of about 62%. Among adults in Atlantic County, ~36% vote Democratic, ~33% Republican, and ~31% don't vote. The map below shows estimated turnout by block group.

How Atlantic County compares

Among counties within 50 miles, Atlantic County leans more Democratic than 4 of 8 neighbors.

Politically, Atlantic County sits close to the rest of New Jersey.

Politics vary noticeably by city within Atlantic County. The southeast side runs the most Democratic (D+28) and the southwest side runs the most Republican (R+25), a spread of about 53 points.

Why Atlantic County leans the way it does

Density, race composition, education, and family structure all sit close to their national averages in Atlantic County. The lean here lands roughly where demographic data alone would predict.

Paved land cover and Democratic lean

Places with extensive paved surfaces tend to lean Democratic; Atlantic County, NJ sits in the top quarter nationally on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.

Why turnout in Atlantic County looks the way it does

Turnout in Atlantic County sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. 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 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.