Rockford leans Republican by roughly 16 points: about 42% of voters vote Democratic and 58% Republican.
About more than 99% of adults in Rockford typically vote, above the U.S. average of about 62%. Among adults in Rockford, ~44% vote Democratic, ~61% Republican, and ~-5% don't vote. The map below shows estimated turnout by block group.
How Rockford compares
Among cities within 25 miles, Rockford leans more Republican than 16 of 70 neighbors.
Rockford runs about 14 points more Republican than Michigan as a whole.
Politics vary noticeably by neighborhood within Rockford. The northeast side is the most Republican-leaning (R+31) and the south side is the least Republican-leaning (R+7), a spread of about 23 points.
Why Rockford 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 Rockford, not a ranked or complete list of what matters most.
Rockford votes Republican even though it is densely developed (about 46%, modestly above the Michigan average of 31%). State and regional patterns outweigh the Democratic lean that density usually predicts here. A high family-household share predicts Republican voting, and about 79% of households in Rockford are family households, above 88% of cities.
Cancer-screening access and voter turnout
Places with high colon-cancer-screening access tend to turn out at a higher rate; Rockford, MI sits in the top tenth nationally on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.
Why turnout in Rockford looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Rockford 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 76%, about 16 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 91% of households in Rockford own their home, about 16 points above the U.S. average of 75%. High high-school completion lines up with higher turnout, and about 97% of adults in Rockford have completed high school, above 91% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Belmont, MI R+18
- Cannonsburg, MI R+17
- Edgerton, MI R+31
- Northview, MI R+3
- Cedar Springs, MI R+29
- Evans, MI R+36
- Grattan, MI R+30
- Parnell, MI R+25
- Sparta, MI R+26
- Comstock Park, MI R+6
Cities with Similar Populations
- Garfield, NJ R+7
- Indiana, PA R+6
- Lady Lake, FL R+28
- Sand Springs, OK R+33
- Foothill Farms, CA D+2
- East Wenatchee, WA R+24
- Southlake, TX R+29
- Helena, MT D+17
- Grandville, MI R+5
- Graham, WA R+21
Sources and methodology
Precinct-level voting records used to fit the model come from Michigan Department 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.