Lacy, Santa Ana, CA Political Map | Democrat & Republican Areas in Lacy

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

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

 

About 26% of adults in Lacy typically vote, below the U.S. average of about 62%. Among adults in Lacy, ~17% vote Democratic, ~9% Republican, and ~74% don't vote. The map below shows estimated turnout by block group.

How Lacy compares

Among neighborhoods within 5 miles, Lacy leans more Democratic than 21 of 33 neighbors.

Lacy runs about 10 points more Democratic than California as a whole.

Why Lacy 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 Lacy, not a ranked or complete list of what matters most.

Dense areas vote Democratic. More than 99% of residents in Lacy 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 48% of adults in Lacy have never been married, above 78% of neighborhoods.

Population density and Democratic lean

Places with high population density tend to lean Democratic; Lacy, Santa Ana, CA sits in the top tenth nationally on this measure.

Why turnout in Lacy looks the way it does

Areas with limited routine healthcare access turn out at lower rates. Lacy is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 45%, about 17 points below the California average of 62%. Renters vote less often than owners, and about 85% of households in Lacy rent, compared to around 65% in nearby neighborhoods. High food insecurity lines up with lower turnout, and about 37% of adults in Lacy report food insecurity, above 91% of neighborhoods. 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.