Junction City leans slightly Republican by roughly 6 points: about 47% of voters vote Democratic and 53% Republican.
About 59% of adults in Junction City typically vote, near the U.S. average of about 62%. Among adults in Junction City, ~28% vote Democratic, ~31% Republican, and ~41% don't vote. The map below shows estimated turnout by block group.
How Junction City compares
Among cities within 25 miles, Junction City leans more Republican than 2 of 12 neighbors.
Junction City runs about 27 points more Republican than California as a whole. California leans Democratic overall, while Junction City is one of the few Republican-leaning pockets.
Politics vary noticeably by neighborhood within Junction City. The northeast side is the most Republican-leaning (R+24) and the east side is the least Republican-leaning (R+5), a spread of about 19 points.
Why Junction City 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 Junction City, not a ranked or complete list of what matters most.
Rural areas vote Republican. About 1% of residents in Junction City live in densely developed areas, about 56 points below the California average of 58%. Junction City runs against the grain of California, a Republican-leaning pocket in a Democratic-leaning state.
Paved land cover and Republican lean
Places with little paved surface tend to lean Republican; Junction City, CA sits in the bottom tenth nationally on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.
Why turnout in Junction City looks the way it does
Areas with low high-school completion turn out at lower rates. About 97% of adults in Junction City have completed high school, about 8 points above the U.S. average of 90%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Weaverville, CA R+14
- Douglas City, CA R+25
- Big Bar, CA R+8
- Lewiston, CA R+30
- Trinity Alps, CA R+28
- Hayfork, CA R+7
- Hyampom, CA R+17
- French Gulch, CA R+35
- Peanut, CA R+4
Cities with Similar Populations
- Milfay, OK R+67
- Twin Lakes, IN R+46
- Sanborn, MN R+60
- Batesland, SD D+49
- Institute, WI R+6
- Latham, OH R+67
- Pitman, PA R+68
- Attica, KS R+66
- Gillisonville, SC R+21
- Lakeview, NC R+43
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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.