New London leans heavily Republican by roughly 36 points: about 32% of voters vote Democratic and 68% Republican.
About 82% of adults in New London typically vote, above the U.S. average of about 62%. Among adults in New London, ~26% vote Democratic, ~56% Republican, and ~18% don't vote. The map below shows estimated turnout by block group.
How New London compares
Among cities within 25 miles, New London leans more Republican than 15 of 60 neighbors.
New London runs about 22 points more Republican than Iowa as a whole.
Politics vary noticeably by neighborhood within New London. The northwest side is the most Republican-leaning (R+44) and the east side is the least Republican-leaning (R+30), a spread of about 13 points.
Why New London 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 London, not a ranked or complete list of what matters most.
Car-dependent areas vote Republican. About 88% of residents in New London drive to work alone, about 14 points above the U.S. average of 74%.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; New London, IA sits above the national average 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 New London looks the way it does
Areas with high high-school completion turn out at higher rates. About 96% of adults in New London 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
- Danville, IA R+33
- Pleasant Grove, IA R+50
- Mount Union, IA R+43
- Mount Pleasant, IA R+24
- Yarmouth, IA R+52
- Middletown, IA R+40
- Oakland Mills, IA R+46
- Salem, IA R+49
- St. Paul, IA R+46
- Westwood, IA R+47
Cities with Similar Populations
- Ajo, AZ D+6
- Dalton Gardens, ID R+43
- Port Washington North, NY D+16
- Clayton, AL D+30
- Frankfort, MI D+13
- Butler, OH R+58
- Warrenton, GA D+25
- Middleport, OH R+48
- Parrish, AL R+72
- North, SC R+4
Sources and methodology
Precinct-level voting records used to fit the model come from Iowa Secretary of State, 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.