Irwin County leans heavily Republican by roughly 44 points: about 28% of voters vote Democratic and 72% Republican.
About 70% of adults in Irwin County typically vote, above the U.S. average of about 62%. Among adults in Irwin County, ~20% vote Democratic, ~50% Republican, and ~30% don't vote. The map below shows estimated turnout by block group.
How Irwin County compares
Among counties within 50 miles, Irwin County leans more Republican than 14 of 19 neighbors.
Irwin County runs about 41 points more Republican than Georgia as a whole.
Politics vary noticeably by city within Irwin County. The northwest side is the most Republican-leaning (R+81) and the east side is the least Republican-leaning (R+17), a spread of about 63 points.
Why Irwin County leans the way it does
This analysis examined 14,881 data points per county to find what predicts political lean and turnout. The items below are a few correlations that stood out for Irwin County, not a ranked or complete list of what matters most.
Car-dependent areas vote Republican. About 82% of residents in Irwin County drive to work alone, about 8 points above the U.S. average of 74%. A high family-household share predicts Republican voting, and about 69% of households in Irwin County are family households, above 76% of counties.
Walkability and Republican lean
Places with a low walkability score tend to lean Republican; Irwin County, GA sits in the bottom quarter 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 Irwin County looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Irwin County is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Ben Hill County, GA R+17
- Tift County, GA R+22
- Turner County, GA R+19
- Berrien County, GA R+66
- Coffee County, GA R+35
- Wilcox County, GA R+33
- Atkinson County, GA R+57
- Cook County, GA R+34
- Worth County, GA R+49
- Telfair County, GA R+30
Counties with Similar Populations
- Grand County, UT R+2
- Zavala County, TX D+4
- Stevens County, MN R+37
- Cumberland County, VA R+23
- Caldwell Parish, LA R+73
- Wayne County, NE R+44
- Rock County, MN R+45
- Marion County, TX R+49
- Humboldt County, IA R+43
- Switzerland County, IN R+63
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Sources and methodology
Precinct-level voting records used to fit the model come from Georgia Elections Division, 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.