Diamond Springs leans Republican by roughly 28 points: about 36% of voters vote Democratic and 64% Republican.
About 79% of adults in Diamond Springs typically vote, above the U.S. average of about 62%. Among adults in Diamond Springs, ~28% vote Democratic, ~51% Republican, and ~21% don't vote. The map below shows estimated turnout by block group.
How Diamond Springs compares
Among cities within 25 miles, Diamond Springs leans more Republican than 36 of 56 neighbors.
Diamond Springs runs about 49 points more Republican than California as a whole. California leans Democratic overall, while Diamond Springs is one of the few Republican-leaning pockets.
Politics vary noticeably by neighborhood within Diamond Springs. The southwest side is the most Republican-leaning (R+33) and the northeast side is the least Republican-leaning (R+23), a spread of about 10 points.
Why Diamond Springs 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 Diamond Springs, not a ranked or complete list of what matters most.
Diamond Springs votes Republican even though it is densely developed (about 29%, well below the California average of 58%). State and regional patterns outweigh the Democratic lean that density usually predicts here. Diamond Springs runs against the grain of California, a Republican-leaning pocket in a Democratic-leaning state.
Park access and Republican lean
Places with low park coverage tend to lean Republican; Diamond Springs, CA sits in the bottom quarter nationally on this measure. Park access does not change how people vote; it tends to track denser, higher-income areas.
Why turnout in Diamond Springs looks the way it does
Turnout in Diamond Springs 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.
Nearby Cities
- El Dorado, CA R+30
- Placerville, CA R+21
- Cold Springs, CA R+23
- Outingdale, CA R+34
- Nashville, CA R+36
- Shingle Springs, CA R+24
- Kelsey, CA R+23
- Camino, CA R+19
- Somerset, CA R+31
- Cameron Park, CA R+17
Cities with Similar Populations
- Manchester, MI R+10
- Gotha, FL D+3
- East Bend, NC R+65
- Middleburg, PA R+63
- Orleans, MA D+38
- Wayzata, MN D+18
- Grand Island, FL R+43
- Clairton, PA D+41
- Magnolia, NJ D+13
- Williams, CA R+5
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.