Allentown, NJ Political Map | Democrat & Republican Areas in Allentown

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

Allentown leans Republican by roughly 16 points: about 42% of voters vote Democratic and 58% Republican.

 

About 86% of adults in Allentown typically vote, above the U.S. average of about 62%. Among adults in Allentown, ~36% vote Democratic, ~50% Republican, and ~14% don't vote. The map below shows estimated turnout by block group.

How Allentown compares

Among cities within 25 miles, Allentown leans more Republican than 114 of 162 neighbors.

Allentown runs about 22 points more Republican than New Jersey as a whole. New Jersey leans Democratic overall, while Allentown is one of the few Republican-leaning pockets.

Politics vary noticeably by neighborhood within Allentown. The south side is the most split-leaning (R+29) and the north side is the least split-leaning (Even), a spread of about 28 points.

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

Allentown votes Republican even though it is densely developed (about 33%, well below the New Jersey average of 61%). State and regional patterns outweigh the Democratic lean that density usually predicts here. A high family-household share predicts Republican voting, and about 80% of households in Allentown are family households, above 90% of cities. Allentown runs against the grain of New Jersey, a Republican-leaning pocket in a Democratic-leaning state.

Preventive-care access and voter turnout

Places with strong routine preventive-care access tend to turn out at a higher rate; Allentown, NJ sits in the top tenth nationally on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.

Why turnout in Allentown looks the way it does

Areas with strong routine healthcare access turn out at higher rates. Allentown 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 74%, about 14 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 91% of households in Allentown 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 Allentown have completed high school, above 84% of cities. Learn more about the findings and methodology on the political spectrum map.

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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.