Bloomfield is a Democratic stronghold. About 82% of voters here vote Democratic and 18% Republican.
About 74% of adults in Bloomfield typically vote, above the U.S. average of about 62%. Among adults in Bloomfield, ~61% vote Democratic, ~13% Republican, and ~26% don't vote. The map below shows estimated turnout by block group.
How Bloomfield compares
Among neighborhoods within 5 miles, Bloomfield leans more Democratic than 15 of 30 neighbors.
Bloomfield runs about 65 points more Democratic than Pennsylvania as a whole. Pennsylvania is roughly evenly split, and Bloomfield sits clearly on the Democratic side.
Politics vary noticeably by block within Bloomfield. The northeast side is the most Democratic-leaning (D+73) and the west side is the least Democratic-leaning (D+51), a spread of about 22 points.
Why Bloomfield 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 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 64 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and Bloomfield sits in the top quarter (about 63%, above 84% of neighborhoods). Bloomfield runs against the grain of Pennsylvania, a Democratic-leaning outlier in a roughly evenly split state.
Paved land cover and Democratic lean
Places with extensive paved surfaces tend to lean Democratic; Bloomfield, Pittsburgh, PA 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
Turnout in Bloomfield sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. Learn more about the findings and methodology on the political spectrum map.
Nearby Neighborhoods
- Garfield, Pittsburgh, PA D+84
- Shadyside, Pittsburgh, PA D+68
- Central Lawrenceville, Pittsburgh, PA D+58
- North Oakland, Pittsburgh, PA D+65
- East Liberty, Pittsburgh, PA D+82
- Squirrel Hill North, Pittsburgh, PA D+69
- Stanton Heights, Pittsburgh, PA D+67
- Highland Park, Pittsburgh, PA D+74
- Morningside, Pittsburgh, PA D+50
- West Oakland, Pittsburgh, PA D+69
Neighborhoods with Similar Populations
- Edison, Kalamazoo, MI D+43
- Windsor Road, Austin, TX D+41
- Loyal Heights, Seattle, WA D+80
- Lovejoy, Buffalo, NY D+20
- Cortez Hill, San Diego, CA D+50
- The Paseos, Las Vegas, NV R+4
- Cane Ridge, Antioch, TN D+5
- Northeast MacFarlane, Tampa, FL Even
- Carriage Place, Aurora, CO D+19
- Old Allentown, Allentown, PA D+34
Sources and methodology
Precinct-level voting records used to fit the model come from Pennsylvania Department of State, Bureau 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.