Osborne leans heavily Republican by roughly 46 points: about 27% of voters vote Democratic and 73% Republican.
About 83% of adults in Osborne typically vote, above the U.S. average of about 62%. Among adults in Osborne, ~22% vote Democratic, ~61% Republican, and ~17% don't vote. The map below shows estimated turnout by block group.
How Osborne compares
Among cities within 25 miles, Osborne leans more Republican than 47 of 59 neighbors.
Osborne runs about 33 points more Republican than Iowa as a whole.
Why Osborne 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 Osborne, not a ranked or complete list of what matters most.
Areas with low college attainment vote Republican. About 10% of adults in Osborne hold a bachelor's degree, about 15 points below the Iowa average of 24%.
Cancer-screening access and voter turnout
Places with high colon-cancer-screening access tend to turn out at a higher rate; Osborne, IA sits in the top quarter nationally on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.
Why turnout in Osborne looks the way it does
Turnout in Osborne 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
- Mederville, IA R+46
- Volga, IA R+45
- Communia, IA R+32
- Elkader, IA R+35
- Strawberry Point, IA R+42
- Elkport, IA R+49
- Edgewood, IA R+46
- Wadena, IA R+38
- St. Olaf, IA R+40
- Wood, IA R+51
Cities with Similar Populations
- Alamo, ND R+77
- Youngsville, OH R+69
- Yukon, AR D+22
- Thompsonville, TX R+21
- West End, WV R+67
- Sandhill Corner, ME R+30
- Windham, MT R+63
- Lodgepole, SD R+70
- Leatherwood, PA R+70
- Athens, MS R+76
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.