Norwalk, IA Political Map | Democrat & Republican Areas in Norwalk

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

Norwalk leans Republican by roughly 20 points: about 40% of voters vote Democratic and 60% Republican.

 

About 92% of adults in Norwalk typically vote, above the U.S. average of about 62%. Among adults in Norwalk, ~37% vote Democratic, ~55% Republican, and ~8% don't vote. The map below shows estimated turnout by block group.

How Norwalk compares

Among cities within 25 miles, Norwalk leans more Republican than 14 of 59 neighbors.

Norwalk runs about 6 points more Republican than Iowa as a whole.

Politics vary noticeably by neighborhood within Norwalk. The southeast side is the most Republican-leaning (R+31) and the northeast side is the least Republican-leaning (R+14), a spread of about 17 points.

Why Norwalk 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 Norwalk, not a ranked or complete list of what matters most.

Norwalk votes Republican even though it is densely developed (about 39%, well above the Iowa average of 16%). State and regional patterns outweigh the Democratic lean that density usually predicts here.

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 Norwalk, IA does.

Why turnout in Norwalk looks the way it does

Areas with strong routine healthcare access turn out at higher rates. Norwalk 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%. High high-school completion lines up with higher turnout, and about 97% of adults in Norwalk have completed high school, above 89% of cities. 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 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.