New Berlin leans heavily Republican by roughly 40 points: about 30% of voters vote Democratic and 70% Republican.
About 80% of adults in New Berlin typically vote, above the U.S. average of about 62%. Among adults in New Berlin, ~24% vote Democratic, ~56% Republican, and ~20% don't vote. The map below shows estimated turnout by block group.
How New Berlin compares
Among cities within 25 miles, New Berlin leans more Republican than 27 of 68 neighbors.
New Berlin runs about 51 points more Republican than Illinois as a whole. Illinois leans Democratic overall, while New Berlin is one of the few Republican-leaning pockets.
Politics vary noticeably by neighborhood within New Berlin. The north side is the most Republican-leaning (R+48) and the southeast side is the least Republican-leaning (R+29), a spread of about 19 points.
Why New Berlin 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 New Berlin, not a ranked or complete list of what matters most.
New Berlin votes against the grain of Illinois. Illinois leans Democratic overall, while New Berlin runs about 51 points more Republican.
High-school completion, uninsured rate, and voter turnout
Places that combine high-school-completion-heavy adults and a low uninsured rate tend to turn out at a higher rate, as New Berlin, IL does.
Why turnout in New Berlin looks the way it does
Areas with high high-school completion turn out at higher rates. About 96% of adults in New Berlin have completed high school, about 6 points above the U.S. average of 90%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Berlin, IL R+50
- Loami, IL R+42
- Curran, IL R+28
- Orleans, IL R+54
- Pleasant Plains, IL R+41
- Alexander, IL R+54
- Richland, IL R+48
- Bradfordton, IL R+19
- Rees, IL R+55
- Chatham, IL R+9
Cities with Similar Populations
- Sawyer, MI R+14
- Reva, VA R+39
- Vergas, MN R+32
- Lummi Island, WA D+54
- Senath, MO R+61
- Palmyra, TN R+66
- Seeley Lake, MT R+33
- Smithton, MO R+64
- Huttonsville, WV R+66
- Hilbert, WI R+44
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.