West Puente Valley, CA Political Map | Democrat & Republican Areas in West Puente Valley

By the BestNeighborhood data science team. Last updated May 2026.

West Puente Valley leans heavily Democratic by roughly 30 points: about 65% of voters vote Democratic and 35% Republican.

 

About 45% of adults in West Puente Valley typically vote, below the U.S. average of about 62%. Among adults in West Puente Valley, ~29% vote Democratic, ~16% Republican, and ~55% don't vote. The map below shows estimated turnout by block group.

How West Puente Valley compares

Among cities within 25 miles, West Puente Valley leans more Democratic than 96 of 129 neighbors.

West Puente Valley runs about 10 points more Democratic than California as a whole.

Politics vary noticeably by neighborhood within West Puente Valley. The northwest side is the most Democratic-leaning (D+36) and the southeast side is the least Democratic-leaning (D+26), a spread of about 10 points.

Why West Puente Valley 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 West Puente Valley, not a ranked or complete list of what matters most.

Dense areas vote Democratic. More than 99% of residents in West Puente Valley live in densely developed areas, about 64 points above the U.S. average of 36%. A high never-married share predicts Democratic voting, and about 37% of adults in West Puente Valley have never been married, above 90% of cities.

Population density and Democratic lean

Places with high population density tend to lean Democratic; West Puente Valley, CA sits in the top tenth nationally on this measure.

Why turnout in West Puente Valley looks the way it does

Areas with limited routine healthcare access turn out at lower rates. West Puente Valley is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. High food insecurity lines up with lower turnout, and about 26% of adults in West Puente Valley report food insecurity, above 92% of cities. Low high-school completion lines up with lower turnout, and about 71% of adults in West Puente Valley have completed high school, below 98% of cities. Learn more about the findings and methodology on the political spectrum map.

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.