Williamsburg leans heavily Republican by roughly 36 points: about 32% of voters vote Democratic and 68% Republican.
About more than 99% of adults in Williamsburg typically vote, above the U.S. average of about 62%. Among adults in Williamsburg, ~36% vote Democratic, ~78% Republican, and ~-14% don't vote. The map below shows estimated turnout by block group.
How Williamsburg compares
Among cities within 25 miles, Williamsburg leans more Republican than 22 of 54 neighbors.
Williamsburg runs about 22 points more Republican than Iowa as a whole.
Why Williamsburg 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 Williamsburg, not a ranked or complete list of what matters most.
Car-dependent areas vote Republican. About 89% of residents in Williamsburg drive to work alone, about 15 points above the U.S. average of 74%.
Park access and Republican lean
Places with low park coverage tend to lean Republican; Williamsburg, IA sits in the bottom quarter nationally on this measure. Park access does not change how people vote; it tends to track denser, higher-income areas.
Why turnout in Williamsburg looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Williamsburg 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 69%, about 9 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 97% of adults in Williamsburg have completed high school, above 90% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Conroy, IA R+33
- Parnell, IA R+38
- South Amana, IA R+34
- Millersburg, IA R+43
- Homestead, IA R+30
- North English, IA R+42
- Marengo, IA R+36
- Ladora, IA R+48
- Amana, IA R+34
- Middle Amana, IA R+33
Cities with Similar Populations
- York Springs, PA R+47
- Santee, SC D+20
- Decatur, MS R+40
- Lansford, PA R+25
- Mertztown, PA R+35
- Juno Beach, FL R+32
- Leonardo, NJ R+22
- Conestoga, PA R+44
- Soap Lake, WA R+47
- Decatur, MI R+26
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.