West Jersey is a Republican stronghold. About 23% of voters here vote Democratic and 77% Republican.
About more than 99% of adults in West Jersey typically vote, above the U.S. average of about 62%. Among adults in West Jersey, ~24% vote Democratic, ~80% Republican, and ~-4% don't vote. The map below shows estimated turnout by block group.
How West Jersey compares
Among cities within 25 miles, West Jersey leans more Republican than 61 of 63 neighbors.
West Jersey runs about 65 points more Republican than Illinois as a whole. Illinois leans Democratic overall, while West Jersey is one of the few Republican-leaning pockets.
Why West Jersey 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 West Jersey, not a ranked or complete list of what matters most.
West Jersey votes against the grain of Illinois. Illinois leans Democratic overall, while West Jersey runs about 65 points more Republican. A high family-household share predicts Republican voting, and about 78% of households in West Jersey are family households, above 84% of cities.
High-school completion, developed land, and voter turnout
Places that combine high-school-completion-heavy adults and a rural land-use pattern tend to turn out at a higher rate, as West Jersey, IL does.
Why turnout in West Jersey looks the way it does
Areas with high high-school completion turn out at higher rates. More than 99% of adults in West Jersey have completed high school, about 8 points above the Illinois average of 92%. Homeowners vote more often than renters, and about 91% of households in West Jersey own their home, about 15 points above the U.S. average of 75%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Laura, IL R+42
- La Fayette, IL R+43
- Toulon, IL R+42
- Williamsfield, IL R+43
- Victoria, IL R+38
- Wyoming, IL R+46
- Monica, IL R+41
- Stark, IL R+55
- Princeville, IL R+43
- Dahinda, IL R+36
Cities with Similar Populations
- Winona, WV R+62
- Luray, KS R+67
- Secondcreek, WV R+63
- Wiseburg, WV R+64
- Riparius, NY R+18
- Risingville, NY R+62
- Wentworth, WI R+10
- Teaberry, WV R+54
- Ridgeport, IA R+27
- South Liberty, ME R+25
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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.