Mill Creek leans heavily Republican by roughly 44 points: about 28% of voters vote Democratic and 72% Republican.
About 79% of adults in Mill Creek typically vote, above the U.S. average of about 62%. Among adults in Mill Creek, ~22% vote Democratic, ~57% Republican, and ~21% don't vote. The map below shows estimated turnout by block group.
How Mill Creek compares
Among cities within 25 miles, Mill Creek leans more Republican than 62 of 77 neighbors.
Mill Creek runs about 26 points more Republican than Indiana as a whole.
Why Mill Creek 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 Mill Creek, not a ranked or complete list of what matters most.
Areas with a high white share and below-average college attainment vote Republican. In Mill Creek, about 96% of residents are non-Hispanic white, about 23 points above the U.S. average of 72%; about 18% of adults hold a bachelor's degree, about 11 points below the U.S. average of 28%. Car-dependent areas vote Republican, and about 85% of residents in Mill Creek drive to work alone, above 81% of cities. A high family-household share predicts Republican voting, and about 81% of households in Mill Creek are family households, above 91% of cities.
Homeownership and voter turnout
Places with homeowner-heavy households tend to turn out at a higher rate; Mill Creek, IN sits in the top tenth nationally on this measure.
Why turnout in Mill Creek looks the way it does
Homeowners vote more often than renters. About 94% of households in Mill Creek own their home, about 12 points above the Indiana average of 82%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Salem Heights, IN R+43
- Stillwell, IN R+43
- Rolling Prairie, IN R+40
- Lake Park, IN R+40
- New Carlisle, IN R+28
- North Liberty, IN R+38
- Monroe Manor, IN R+11
- La Porte, IN R+20
- Woodland, IN R+20
- Kingsbury, IN R+41
Cities with Similar Populations
- Newellton, LA R+42
- LaMoure, ND R+54
- East Union, TN R+50
- East Calais, VT D+18
- Laconia, TN R+43
- New Summerfield, TX R+59
- Bradford, FL R+75
- Good Hope, OH R+62
- Nakina, NC R+65
- Ettrick, WI R+27
Sources and methodology
Precinct-level voting records used to fit the model come from Indiana 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.