Montebello leans Democratic by roughly 28 points: about 64% of voters vote Democratic and 36% Republican.
About 45% of adults in Montebello typically vote, below the U.S. average of about 62%. Among adults in Montebello, ~29% vote Democratic, ~16% Republican, and ~55% don't vote. The map below shows estimated turnout by block group.
How Montebello compares
Among cities within 25 miles, Montebello leans more Democratic than 91 of 147 neighbors.
Montebello runs about 8 points more Democratic than California as a whole.
Politics vary noticeably by neighborhood within Montebello. The southwest side is the most Democratic-leaning (D+34) and the north side is the least Democratic-leaning (D+19), a spread of about 15 points.
Why Montebello 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 Montebello, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 99% of residents in Montebello live in densely developed areas, about 63 points above the U.S. average of 36%. A high never-married share predicts Democratic voting, and about 42% of adults in Montebello have never been married, above 95% of cities.
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; Montebello, CA sits in the top tenth 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 Montebello looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Montebello 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 Montebello rent, about 30 points above the U.S. average of 25%. High food insecurity lines up with lower turnout, and about 26% of adults in Montebello report food insecurity, above 92% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Pico Rivera, CA D+28
- Commerce, CA D+33
- Monterey Park, CA D+21
- East Los Angeles, CA D+41
- West Whittier-Los Nietos, CA D+28
- Rosemead, CA D+17
- Bell Gardens, CA D+36
- Maywood, CA D+38
- Vernon, CA D+24
- South El Monte, CA D+28
Cities with Similar Populations
- Wellington, FL R+6
- Pico Rivera, CA D+28
- Wilmington, CA D+30
- La Mesa, CA D+24
- Tigard, OR D+40
- Cartersville, GA R+34
- Smyrna, TN R+16
- Blue Springs, MO R+7
- Kannapolis, NC R+8
- Irvington, NJ D+78
Sources and methodology
Precinct-level voting records used to fit the model come from California Secretary of State, 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.