Dearborn leans heavily Republican by roughly 50 points: about 25% of voters vote Democratic and 75% Republican.
About 80% of adults in Dearborn typically vote, above the U.S. average of about 62%. Among adults in Dearborn, ~20% vote Democratic, ~60% Republican, and ~20% don't vote. The map below shows estimated turnout by block group.
How Dearborn compares
Among cities within 25 miles, Dearborn leans more Republican than 34 of 65 neighbors.
Dearborn runs about 31 points more Republican than Missouri as a whole.
Why Dearborn 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 Dearborn, not a ranked or complete list of what matters most.
Car-dependent areas vote Republican. About 91% of residents in Dearborn drive to work alone, about 17 points above the U.S. average of 74%. A high family-household share predicts Republican voting, and about 75% of households in Dearborn are family households, above 77% of cities.
Frequent mental distress and voter turnout
Places with a low frequent-mental-distress rate tend to turn out at a higher rate; Dearborn, MO sits in the bottom tenth nationally on this measure. Reported mental distress does not drive turnout; it reflects economic and health conditions tied to voting.
Why turnout in Dearborn looks the way it does
Turnout in Dearborn sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Edgerton Junction, MO R+51
- New Market, MO R+41
- Wallace, MO R+51
- Camden Point, MO R+48
- Faucett, MO R+54
- Edgerton, MO R+51
- Woodruff, MO R+37
- Frazier, MO R+54
- Agency, MO R+53
- Ridgely, MO R+49
Cities with Similar Populations
- Cybur, MS R+82
- Mounds, IL D+27
- Happy, TX R+79
- Vanoss, OK R+68
- Sinks Grove, WV R+63
- Middle Grove, MO R+68
- Telferner, TX R+51
- New Salem, MA D+33
- Harvey, KY R+62
- Cottageville, WV R+60
Sources and methodology
Precinct-level voting records used to fit the model come from Missouri 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.