Bloomfield leans heavily Democratic by roughly 40 points: about 70% of voters vote Democratic and 30% Republican.
About 55% of adults in Bloomfield typically vote, below the U.S. average of about 62%. Among adults in Bloomfield, ~39% vote Democratic, ~16% Republican, and ~45% don't vote. The map below shows estimated turnout by block group.
How Bloomfield compares
Among cities within 25 miles, Bloomfield leans more Democratic than 250 of 278 neighbors.
Bloomfield runs about 34 points more Democratic than New Jersey as a whole.
Politics vary noticeably by neighborhood within Bloomfield. The west side is the most Democratic-leaning (D+60) and the northeast side is the least Democratic-leaning (D+28), a spread of about 32 points.
Why Bloomfield 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 Bloomfield, not a ranked or complete list of what matters most.
Dense areas vote Democratic. More than 99% of residents in Bloomfield live in densely developed areas, about 63 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and Bloomfield sits in the top quarter (about 46%, above 91% of cities). A high never-married share predicts Democratic voting, and about 42% of adults in Bloomfield have never been married, above 95% of cities.
Paved land cover and Democratic lean
Places with extensive paved surfaces tend to lean Democratic; Bloomfield, 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 Bloomfield looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Bloomfield is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. Renters vote less often than owners, and about 55% of households in Bloomfield rent, about 30 points above the U.S. average of 25%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Glen Ridge, NJ D+56
- Silver Lake, NJ D+31
- Belleville, NJ D+10
- Montclair, NJ D+73
- Nutley, NJ R+3
- East Orange, NJ D+80
- Brookdale, NJ D+27
- Orange, NJ D+72
- North Arlington, NJ R+12
- Kearny, NJ Even
Cities with Similar Populations
- Los Gatos, CA D+32
- North Brunswick, NJ D+25
- Brooksville, FL R+42
- Los Lunas, NM R+11
- Coachella, CA D+22
- Lumberton, NC R+11
- Elkton, MD R+17
- Hudson, FL R+37
- Fair Oaks, CA D+6
- Dunedin, FL R+10
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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.