San Ardo leans heavily Republican by roughly 40 points: about 30% of voters vote Democratic and 70% Republican.
About 29% of adults in San Ardo typically vote, below the U.S. average of about 62%. Among adults in San Ardo, ~9% vote Democratic, ~20% Republican, and ~71% don't vote. The map below shows estimated turnout by block group.
How San Ardo compares
Among cities within 25 miles, San Ardo leans more Republican than 10 of 11 neighbors.
San Ardo runs about 61 points more Republican than California as a whole. California leans Democratic overall, while San Ardo is one of the few Republican-leaning pockets.
Why San Ardo 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 San Ardo, not a ranked or complete list of what matters most.
San Ardo votes against the grain of California. California leans Democratic overall, while San Ardo runs about 61 points more Republican. Rural areas vote Republican, and San Ardo sits in the bottom quarter on density (about 1%, below 97% of cities). A high family-household share predicts Republican voting, and about 82% of households in San Ardo are family households, above 93% of cities.
Population density, never-married share, and Republican lean
Places that combine low population density and a never-married-heavy adult population tend to lean Republican, as San Ardo, CA does.
Why turnout in San Ardo looks the way it does
Renters vote less often than owners. About 32% of households in San Ardo rent, about 7 points above the U.S. average of 25%. Crowded housing lines up with lower turnout, and about 6% of homes in San Ardo have more than one occupant per room, above 91% of cities. Low high-school completion lines up with lower turnout, and about 81% of adults in San Ardo have completed high school, below 89% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- San Lucas, CA R+15
- Lockwood, CA R+34
- Bradley, CA R+36
- Bryson, CA R+25
- Lonoak, CA R+37
- Jolon, CA R+28
- King City, CA D+14
- Parkfield, CA R+40
- San Lawrence Terrace, CA R+48
- San Miguel, CA R+17
Cities with Similar Populations
- Dexterville, NY R+37
- Martin, LA R+82
- Burlington, WY R+80
- Manton, CA R+38
- Subligna, GA R+76
- Tenstrike, MN R+38
- Foster, OR R+43
- Elyria, KS R+58
- Teanaway, WA R+24
- Viola, WV R+61
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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.