Mammoth Lakes, CA Political Map | Democrat & Republican Areas in Mammoth Lakes

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

Mammoth Lakes leans Democratic by roughly 20 points: about 60% of voters vote Democratic and 40% Republican.

 

About 64% of adults in Mammoth Lakes typically vote, near the U.S. average of about 62%. Among adults in Mammoth Lakes, ~39% vote Democratic, ~26% Republican, and ~35% don't vote. The map below shows estimated turnout by block group.

How Mammoth Lakes compares

Politically, Mammoth Lakes sits close to the rest of California.

Politics vary noticeably by neighborhood within Mammoth Lakes. The southeast side is the most Democratic-leaning (D+25) and the southwest side is the least Democratic-leaning (D+7), a spread of about 18 points.

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

Dense areas vote Democratic. About 46% of residents in Mammoth Lakes live in densely developed areas, about 10 points above the U.S. average of 36%. A high never-married share predicts Democratic voting, and about 39% of adults in Mammoth Lakes have never been married, above 92% of cities.

Walkability and Democratic lean

Places with a highly walkable street grid tend to lean Democratic; Mammoth Lakes, 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 Mammoth Lakes looks the way it does

Turnout in Mammoth Lakes 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.

All Local Stats

Home Services

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.