Junction West, Roseville, CA Political Map | Democrat & Republican Areas in Junction West

Junction West leans slightly Republican by roughly 10 points: about 45% of voters vote Democratic and 55% Republican.

 
Junction West, Roseville, CA block-group political-lean map
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About 75% of adults in Junction West typically vote, above the U.S. average of about 62%. Among adults in Junction West, ~34% vote Democratic, ~41% Republican, and ~25% don't vote. The map below shows estimated turnout by block group.

Junction West, Roseville, CA block-group voter-turnout map
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How Junction West compares

Among neighborhoods within 5 miles, Junction West is the most Republican-leaning.

Junction West runs about 31 points more Republican than California as a whole. California leans Democratic overall, while Junction West is one of the few Republican-leaning pockets.

Why Junction West leans the way it does

This analysis examined 14,881 data points per neighborhood to find what predicts political lean and turnout. The items below are a few correlations that stood out for Junction West, not a ranked or complete list of what matters most.

Junction West votes against the grain of California. California leans Democratic overall, while Junction West runs about 31 points more Republican. A high family-household share predicts Republican voting, and about 76% of households in Junction West are family households, above 79% of neighborhoods.

Preventive-care access and voter turnout

Places with strong routine preventive-care access tend to turn out at a higher rate; Junction West, Roseville, CA sits in the top quarter nationally on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.

Why turnout in Junction West looks the way it does

Turnout in Junction West 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.

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.