Concord leans heavily Democratic by roughly 34 points: about 67% of voters vote Democratic and 33% Republican.
About 60% of adults in Concord typically vote, near the U.S. average of about 62%. Among adults in Concord, ~40% vote Democratic, ~20% Republican, and ~40% don't vote. The map below shows estimated turnout by block group.
How Concord compares
Among cities within 25 miles, Concord leans more Democratic than 24 of 62 neighbors.
Concord runs about 13 points more Democratic than California as a whole.
Politics vary noticeably by neighborhood within Concord. The west side is the most Democratic-leaning (D+44) and the northeast side is the least Democratic-leaning (D+27), a spread of about 17 points.
Why Concord 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 Concord, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 96% of residents in Concord live in densely developed areas, about 60 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and Concord sits in the top quarter (about 37%, above 84% of cities). A high never-married share predicts Democratic voting, and about 34% of adults in Concord have never been married, above 85% of cities.
Population density and Democratic lean
Places with high population density tend to lean Democratic; Concord, CA sits in the top tenth nationally on this measure.
Why turnout in Concord looks the way it does
Renters vote less often than owners. About 38% of households in Concord rent, about 13 points above the U.S. average of 25%. Crowded housing lines up with lower turnout, and about 7% of homes in Concord have more than one occupant per room, above 93% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Pleasant Hill, CA D+41
- Walnut Creek, CA D+47
- Reliez Valley, CA D+34
- Bay Point, CA D+37
- Clayton, CA D+14
- Martinez, CA D+30
- Castle Hill, CA D+41
- Pittsburg, CA D+38
- Lafayette, CA D+48
- Alamo, CA D+20
Cities with Similar Populations
- Temecula, CA R+11
- Delray Beach, FL D+11
- Spartanburg, SC R+4
- Joliet, IL D+22
- Waco, TX D+3
- Bend, OR D+16
- Pueblo, CO D+8
- Asheville, NC D+39
- Independence, MO Even
- Riverview, FL D+6
All Local Stats
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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.