Watchung is a true toss-up. About 51% of voters here vote Democratic and 49% Republican.
About 83% of adults in Watchung typically vote, above the U.S. average of about 62%. Among adults in Watchung, ~42% vote Democratic, ~41% Republican, and ~17% don't vote. The map below shows estimated turnout by block group.
How Watchung compares
Among cities within 25 miles, Watchung sits roughly in the middle of the political spectrum, with 121 neighbors leaning further in the place's direction and 121 leaning the other way.
Politically, Watchung sits close to the rest of New Jersey.
Politics vary noticeably by neighborhood within Watchung. The south side runs the most Democratic (D+19) and the northwest side runs the most Republican (R+12), a spread of about 31 points.
Why Watchung leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in Watchung. The lean here lands roughly where demographic data alone would predict.
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; Watchung, NJ sits in the top quarter 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 Watchung looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Watchung 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 73%, about 13 points above the U.S. average of 60%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- North Plainfield, NJ D+31
- Plainfield, NJ D+57
- Berkeley Heights, NJ D+11
- Gillette, NJ Even
- Fanwood, NJ D+29
- Dunellen, NJ D+6
- Stirling, NJ R+2
- Scotch Plains, NJ D+23
- Warren, NJ R+4
- Millington, NJ Even
Cities with Similar Populations
- Cowpens, SC R+62
- Travilah, MD D+36
- Oscoda, MI R+21
- Franklin, NH R+9
- Holts Summit, MO R+46
- Von Ormy, TX R+7
- Lake Dallas, TX R+21
- Akron, NY R+26
- Corry, PA R+31
- Fort Pierce North, FL D+54
All Local Stats
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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.