Springfield Lake Shore Improvement, Springfield, IL Political Map | Democrat & Republican Areas in Springfield Lake Shore Improvement

By the BestNeighborhood data science team. Last updated May 2026.

Springfield Lake Shore Improvement leans slightly Republican by roughly 6 points: about 47% of voters vote Democratic and 53% Republican.

 

About 93% of adults in Springfield Lake Shore Improvement typically vote, above the U.S. average of about 62%. Among adults in Springfield Lake Shore Improvement, ~44% vote Democratic, ~49% Republican, and ~7% don't vote. The map below shows estimated turnout by block group.

How Springfield Lake Shore Improvement compares

Springfield Lake Shore Improvement runs about 17 points more Republican than Illinois as a whole. Illinois leans Democratic overall, while Springfield Lake Shore Improvement is one of the few Republican-leaning pockets.

Politics vary noticeably by block within Springfield Lake Shore Improvement. The north side runs the most Democratic (D+4) and the southwest side runs the most Republican (R+13), a spread of about 17 points.

Why Springfield Lake Shore Improvement leans the way it does

This analysis examined 14,881 data points per neighborhood to find what predicts political lean and turnout. The items below are a few correlations that stood out for Springfield Lake Shore Improvement, not a ranked or complete list of what matters most.

Rural areas with a high white share vote Republican. Springfield Lake Shore Improvement sits in the bottom quarter on density and about 85% of residents are non-Hispanic white, about 13 points above the U.S. average of 72%. Springfield Lake Shore Improvement runs against the grain of Illinois, a Republican-leaning pocket in a Democratic-leaning state.

Population density and Republican lean

Places with low population density tend to lean Republican; Springfield Lake Shore Improvement, Springfield, IL sits in the bottom quarter nationally on this measure.

Why turnout in Springfield Lake Shore Improvement looks the way it does

Areas with strong routine healthcare access turn out at higher rates. Springfield Lake Shore Improvement is in the top quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 71%, about 11 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 91% of households in Springfield Lake Shore Improvement own their home, compared to around 57% in nearby neighborhoods. High high-school completion lines up with higher turnout, and about 98% of adults in Springfield Lake Shore Improvement have completed high school, above 85% of neighborhoods. Learn more about the findings and methodology on the political spectrum map.

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.