Raritan is a true toss-up. About 52% of voters here vote Democratic and 48% Republican.
About 57% of adults in Raritan typically vote, near the U.S. average of about 62%. Among adults in Raritan, ~30% vote Democratic, ~27% Republican, and ~43% don't vote. The map below shows estimated turnout by block group.
How Raritan compares
Among cities within 25 miles, Raritan leans more Democratic than 103 of 210 neighbors.
Politically, Raritan sits close to the rest of New Jersey.
Why Raritan leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in Raritan. 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; Raritan, NJ sits in the top tenth 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 Raritan looks the way it does
Renters vote less often than owners. About 46% of households in Raritan rent, about 21 points above the U.S. average of 25%. Strong routine healthcare access lines up with higher turnout, and Raritan sits in the top quarter on routine-care measures. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Somerville, NJ D+12
- Bradley Gardens, NJ D+9
- Green Knoll, NJ D+6
- Bridgewater, NJ Even
- Finderne, NJ D+9
- Manville, NJ R+10
- North Branch Depot, NJ R+5
- Flagtown, NJ R+4
- Martinsville, NJ Even
Cities with Similar Populations
- Dundee, MI R+27
- Harrisville, UT R+36
- Quitman, GA Even
- Adams, MA D+7
- Fanwood, NJ D+29
- Abilene, KS R+45
- Acton, CA R+33
- Pevely, MO R+43
- Linwood, NJ R+7
- Kewaskum, WI R+44
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.