Chambersburg leans heavily Democratic by roughly 38 points: about 69% of voters vote Democratic and 31% Republican.
About 25% of adults in Chambersburg typically vote, below the U.S. average of about 62%. Among adults in Chambersburg, ~17% vote Democratic, ~8% Republican, and ~75% don't vote. The map below shows estimated turnout by block group.
How Chambersburg compares
Among neighborhoods within 5 miles, Chambersburg leans more Democratic than 2 of 12 neighbors.
Chambersburg runs about 33 points more Democratic than New Jersey as a whole.
Politics vary noticeably by block within Chambersburg. The southwest side is the most Democratic-leaning (D+52) and the east side is the least Democratic-leaning (D+33), a spread of about 20 points.
Why Chambersburg leans the way it does
This analysis examined 14,881 data points per neighborhood to find what predicts political lean and turnout. The items below are a few correlations that stood out for Chambersburg, not a ranked or complete list of what matters most.
Dense areas vote Democratic. More than 99% of residents in Chambersburg live in densely developed areas, about 64 points above the U.S. average of 36%. A high never-married share predicts Democratic voting, and about 58% of adults in Chambersburg have never been married, above 91% of neighborhoods.
Preventive-care access and voter turnout
Places with limited routine preventive-care access tend to turn out at a lower rate; Chambersburg, Trenton, NJ sits in the bottom 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 Chambersburg looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Chambersburg is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 41%, about 27 points below the New Jersey average of 67%. High food insecurity lines up with lower turnout, and about 45% of adults in Chambersburg report food insecurity, above 96% of neighborhoods. High-crime urban areas turn out at lower rates, and Chambersburg sits in the top 15% on a violent-crime measure. Learn more about the findings and methodology on the political spectrum map.
Nearby Neighborhoods
- Greenwood and Hamilton, Trenton, NJ D+64
- Villa Park, Trenton, NJ D+39
- Chestnut Park, Trenton, NJ D+42
- South Trenton, Trenton, NJ D+45
- Franklin Park, Trenton, NJ D+34
- Wilbur, Trenton, NJ D+70
- North Trenton, Trenton, NJ D+79
- Downtown Trenton, Trenton, NJ D+76
- Central West, Trenton, NJ D+79
- Top Road, Trenton, NJ D+36
Neighborhoods with Similar Populations
- South Side, Columbus, OH D+50
- Tottenville, Staten Island, NY R+62
- Columbia City, Seattle, WA D+71
- South Lowell, Lowell, MA D+19
- salisbury, Allentown, PA R+2
- Midvale Park, Tucson, AZ D+35
- Van Nest, Bronx, NY D+19
- Virginia-Highland, Atlanta, GA D+53
- Whittier, Minneapolis, MN D+72
- North Burnet, Austin, TX D+45
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.