Gilliam leans Republican by roughly 22 points: about 39% of voters vote Democratic and 61% Republican.
About 41% of adults in Gilliam typically vote, below the U.S. average of about 62%. Among adults in Gilliam, ~16% vote Democratic, ~25% Republican, and ~59% don't vote. The map below shows estimated turnout by block group.
How Gilliam compares
Among cities within 25 miles, Gilliam leans more Republican than 7 of 58 neighbors.
Politically, Gilliam sits close to the rest of Louisiana.
Politics vary noticeably by neighborhood within Gilliam. The west side is the most Republican-leaning (R+71) and the southeast side is the least Republican-leaning (R+12), a spread of about 59 points.
Why Gilliam 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 Gilliam, not a ranked or complete list of what matters most.
Areas with low college attainment vote Republican. About 12% of adults in Gilliam hold a bachelor's degree, about 7 points below the Louisiana average of 19%. Rural areas vote Republican, and Gilliam sits in the bottom quarter on density (about 4%, below 82% of cities).
Population density, never-married share, and Republican lean
Places that combine low population density and a never-married-heavy adult population tend to lean Republican, as Gilliam, LA does.
Why turnout in Gilliam looks the way it does
Areas with high food insecurity turn out at lower rates. About 28% of adults in Gilliam report food insecurity, about 12 points above the U.S. average of 16%. Low high-school completion lines up with lower turnout, and about 76% of adults in Gilliam have completed high school, below 95% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Collinsburg, LA R+12
- Belcher, LA R+45
- Hughes, LA R+37
- Plain Dealing, LA R+21
- Hosston, LA R+52
- Dixie, LA R+59
- Bolinger, LA R+54
- Benton, LA R+58
Cities with Similar Populations
- Lanford, SC R+54
- Hanska, MN R+49
- Meridian, OK R+64
- Milligan, FL R+67
- Cannon, KY R+73
- McBrayer, KY R+56
- Millbrook, MI R+43
- Cowansville, PA R+60
- Clintonville, PA R+56
- Petersham, MA D+15
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Sources and methodology
Precinct-level voting records used to fit the model come from Louisiana 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.