Acton leans heavily Republican by roughly 32 points: about 34% of voters vote Democratic and 66% Republican.
About 59% of adults in Acton typically vote, near the U.S. average of about 62%. Among adults in Acton, ~20% vote Democratic, ~39% Republican, and ~41% don't vote. The map below shows estimated turnout by block group.
How Acton compares
Among cities within 25 miles, Acton leans more Republican than 38 of 41 neighbors.
Acton runs about 53 points more Republican than California as a whole. California leans Democratic overall, while Acton is one of the few Republican-leaning pockets.
Why Acton 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 Acton, not a ranked or complete list of what matters most.
Acton votes against the grain of California. California leans Democratic overall, while Acton runs about 53 points more Republican. A high family-household share predicts Republican voting, and about 75% of households in Acton are family households, above 76% of cities.
Cancer-screening access and voter turnout
Places with low colon-cancer-screening access tend to turn out at a lower rate; Acton, CA sits in the bottom quarter nationally on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.
Why turnout in Acton looks the way it does
Crowded housing lines up with lower turnout. About 6% of homes in Acton have more than one occupant per room, above 92% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Palmdale, CA D+14
- Agua Dulce, CA R+36
- Leona Valley, CA R+39
- Quartz Hill, CA R+16
- Littlerock, CA R+10
- Lancaster, CA D+14
- Sun Village, CA D+4
- Canyon Country, CA D+3
- Del Sur, CA R+33
- Pearblossom, CA R+12
Cities with Similar Populations
- Abilene, KS R+45
- Quitman, GA Even
- Linwood, NJ R+7
- Kewaskum, WI R+44
- Manchester, PA R+30
- Jonestown, PA R+53
- Colonie, NY D+9
- Dundee, MI R+27
- Raritan, NJ D+3
- Colusa, CA R+26
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.