Brighton leans heavily Republican by roughly 42 points: about 29% of voters vote Democratic and 71% Republican.
About 84% of adults in Brighton typically vote, above the U.S. average of about 62%. Among adults in Brighton, ~24% vote Democratic, ~60% Republican, and ~16% don't vote. The map below shows estimated turnout by block group.
How Brighton compares
Among cities within 25 miles, Brighton leans more Republican than 13 of 55 neighbors.
Brighton runs about 28 points more Republican than Iowa as a whole.
Why Brighton 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 Brighton, not a ranked or complete list of what matters most.
Areas with low college attainment vote Republican. About 14% of adults in Brighton hold a bachelor's degree, about 10 points below the Iowa average of 24%.
Never-married share and voter turnout
Places with a low never-married share tend to turn out at a higher rate; Brighton, IA sits in the bottom quarter nationally on this measure.
Why turnout in Brighton looks the way it does
Turnout in Brighton 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
- Pleasant Plain, IA R+47
- East Pleasant Plain, IA R+47
- Veo, IA R+47
- Coppock, IA R+47
- Germanville, IA R+47
- Rubio, IA R+51
- Wayland, IA R+40
- Perlee, IA R+47
- Salina, IA R+47
- Richland, IA R+52
Cities with Similar Populations
- Luke Afb, AZ R+3
- Greentop, MO R+66
- Trimble, GA R+43
- Reiles Acres, ND R+37
- South Fork, CO R+18
- Gulliver, MI R+44
- Wallen, IN R+38
- Burton, ID R+69
- Amherst, TX R+75
- Ray, OH R+60
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.