Roseville leans slightly Republican by roughly 6 points: about 47% of voters vote Democratic and 53% Republican.
About 74% of adults in Roseville typically vote, above the U.S. average of about 62%. Among adults in Roseville, ~35% vote Democratic, ~39% Republican, and ~26% don't vote. The map below shows estimated turnout by block group.
How Roseville compares
Among cities within 25 miles, Roseville leans more Republican than 21 of 60 neighbors.
Roseville runs about 26 points more Republican than California as a whole. California leans Democratic overall, while Roseville is one of the few Republican-leaning pockets.
Politics vary noticeably by neighborhood within Roseville. The northeast side runs the most Democratic (Even) and the southwest side runs the most Republican (R+19), a spread of about 20 points.
Why Roseville 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 Roseville, not a ranked or complete list of what matters most.
Roseville votes Republican even though it is densely developed (about 91%, far above the California average of 58%). State and regional patterns outweigh the Democratic lean that density usually predicts here. Roseville runs against the grain of California, a Republican-leaning pocket in a Democratic-leaning state.
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; Roseville, CA sits in the top tenth nationally on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in Roseville looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Roseville is in the top quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 70%, about 10 points above the U.S. average of 60%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Rocklin, CA R+9
- Antelope, CA R+2
- Citrus Heights, CA R+3
- Foothill Farms, CA D+2
- Granite Bay, CA R+11
- North Highlands, CA D+7
- Orangevale, CA R+10
- Elverta, CA R+33
- Fair Oaks, CA D+6
- Loomis, CA R+24
Cities with Similar Populations
- Boynton Beach, FL D+16
- Rancho Cucamonga, CA Even
- Beaverton, OR D+40
- Bellevue, WA D+44
- Pasadena, TX R+8
- Sunnyvale, CA D+36
- Hollywood, FL D+11
- Las Cruces, NM D+5
- Olathe, KS D+2
- Victorville, CA Even
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.