Pike County is a Republican stronghold. About 21% of voters here vote Democratic and 79% Republican.
About 73% of adults in Pike County typically vote, above the U.S. average of about 62%. Among adults in Pike County, ~15% vote Democratic, ~58% Republican, and ~27% don't vote. The map below shows estimated turnout by block group.
How Pike County compares
Among counties within 50 miles, Pike County leans more Republican than 11 of 13 neighbors.
Pike County runs about 68 points more Republican than Illinois as a whole. Illinois leans Democratic overall, while Pike County is one of the few Republican-leaning pockets.
Politics vary noticeably by city within Pike County. The southwest side is the most Republican-leaning (R+71) and the south side is the least Republican-leaning (R+54), a spread of about 16 points.
Why Pike 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 Pike County, not a ranked or complete list of what matters most.
Areas with a high white share and below-average college attainment vote Republican. In Pike County, about 95% of residents are non-Hispanic white, about 22 points above the U.S. average of 72%; about 19% of adults hold a bachelor's degree, about 8 points below the Illinois average of 27%. Car-dependent areas vote Republican, and about 84% of residents in Pike County drive to work alone, above 91% of counties. Pike County runs against the grain of Illinois, a Republican-leaning pocket in a Democratic-leaning state.
Renting and voter turnout
Places with homeowner-heavy households tend to turn out at a higher rate; Pike County, IL sits below the national average on this measure.
Why turnout in Pike County looks the way it does
Turnout in Pike County 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.
Nearby Counties
- Scott County, IL R+64
- Pike County, MO R+55
- Brown County, IL R+39
- Greene County, IL R+56
- Ralls County, MO R+62
- Marion County, MO R+44
- Adams County, IL R+40
- Morgan County, IL R+25
- Calhoun County, IL R+56
- Cass County, IL R+31
Counties with Similar Populations
- Nolan County, TX R+47
- Reeves County, TX R+33
- Renville County, MN R+49
- Karnes County, TX R+35
- McKenzie County, ND R+56
- Nelson County, VA R+22
- Jeff Davis County, GA R+57
- Clarke County, VA R+18
- Hale County, AL D+13
- LaSalle Parish, LA R+71
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.