Altona leans heavily Republican by roughly 38 points: about 31% of voters vote Democratic and 69% Republican.
About 80% of adults in Altona typically vote, above the U.S. average of about 62%. Among adults in Altona, ~25% vote Democratic, ~55% Republican, and ~20% don't vote. The map below shows estimated turnout by block group.
How Altona compares
Among cities within 25 miles, Altona leans more Republican than 35 of 60 neighbors.
Altona runs about 49 points more Republican than Illinois as a whole. Illinois leans Democratic overall, while Altona is one of the few Republican-leaning pockets.
Why Altona 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 Altona, not a ranked or complete list of what matters most.
Areas with a high white share and below-average college attainment vote Republican. In Altona, about 98% of residents are non-Hispanic white, about 25 points above the U.S. average of 72%; about 18% of adults hold a bachelor's degree, about 9 points below the Illinois average of 27%. Car-dependent areas vote Republican, and about 89% of residents in Altona drive to work alone, above 91% of cities. Altona runs against the grain of Illinois, a Republican-leaning pocket in a Democratic-leaning state.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; Altona, IL 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 Altona looks the way it does
Homeowners vote more often than renters. About 93% of households in Altona own their home, about 14 points above the Illinois average of 80%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Oneida, IL R+37
- Bishop Hill, IL R+33
- Galva, IL R+30
- Victoria, IL R+38
- Woodhull, IL R+31
- La Fayette, IL R+43
- Wataga, IL R+30
- Dahinda, IL R+36
- Rio, IL R+39
- Ulah, IL R+36
Cities with Similar Populations
- St. Leon, IN R+65
- Cologne, VA R+38
- Candia Four Corners, NH R+20
- Old Mission, MI D+25
- Gilboa, OH R+68
- White Lake, NY R+15
- La Crosse, FL R+26
- Maplewood, NY R+15
- Millhousen, IN R+63
- Callaghan, VA R+65
All Local Stats
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Sources and methodology
Precinct-level voting records used to fit the model come from Illinois State Board of 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.