Halcyon leans slightly Republican by roughly 8 points: about 46% of voters vote Democratic and 54% Republican.
About 41% of adults in Halcyon typically vote, below the U.S. average of about 62%. Among adults in Halcyon, ~19% vote Democratic, ~22% Republican, and ~59% don't vote. The map below shows estimated turnout by block group.
How Halcyon compares
Among cities within 25 miles, Halcyon leans more Republican than 14 of 23 neighbors.
Halcyon runs about 29 points more Republican than California as a whole. California leans Democratic overall, while Halcyon is one of the few Republican-leaning pockets.
Politics vary noticeably by neighborhood within Halcyon. The north side runs the most Democratic (D+17) and the southeast side runs the most Republican (R+21), a spread of about 37 points.
Why Halcyon 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 Halcyon, not a ranked or complete list of what matters most.
Areas with many family households vote Republican. About 83% of households in Halcyon are family households, about 17 points above the U.S. average of 67%. Rural areas vote Republican, and Halcyon sits in the bottom quarter on density (about 2%, below 95% of cities). Halcyon runs against the grain of California, a Republican-leaning pocket in a Democratic-leaning state.
Paved land cover and Republican lean
Places with little paved surface tend to lean Republican; Halcyon, CA sits in the bottom tenth nationally on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.
Why turnout in Halcyon looks the way it does
Renters vote less often than owners. About 31% of households in Halcyon rent, about 6 points above the U.S. average of 25%. Strong routine healthcare access lines up with higher turnout, and Halcyon sits in the top quarter on routine-care measures. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Arroyo Grande, CA D+3
- Los Berros, CA R+19
- Grover Beach, CA D+10
- Oceano, CA D+9
- Pismo Beach, CA D+14
- Huasna, CA R+22
- Shell Beach, CA D+16
- Nipomo, CA R+10
- San Luis Obispo, CA D+39
- Pozo, CA R+27
Cities with Similar Populations
- Stanford, MT R+63
- Miltonvale, KS R+74
- Tinsley, MS R+64
- Ontario on the Lake, NY R+17
- Serena, IL R+34
- Sun, LA R+78
- Friendship, NC R+45
- Choctaw, FL R+50
- Bloomingrose, WV R+65
- Mc Intosh, NM R+54
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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.