Oldenburg is a Republican stronghold. About 20% of voters here vote Democratic and 80% Republican.
About 69% of adults in Oldenburg typically vote, above the U.S. average of about 62%. Among adults in Oldenburg, ~14% vote Democratic, ~55% Republican, and ~31% don't vote. The map below shows estimated turnout by block group.
How Oldenburg compares
Among cities within 25 miles, Oldenburg leans more Republican than 15 of 77 neighbors.
Oldenburg runs about 41 points more Republican than Indiana as a whole.
Why Oldenburg 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 Oldenburg, not a ranked or complete list of what matters most.
Areas with many family households vote Republican. About 79% of households in Oldenburg are family households, about 12 points above the U.S. average of 67%.
Cancer-screening access and voter turnout
Places with high colon-cancer-screening access tend to turn out at a higher rate; Oldenburg, IN 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 Oldenburg looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Oldenburg 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 67%, about 7 points above the U.S. average of 60%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Peppertown, IN R+63
- Batesville, IN R+51
- Buena Vista, IN R+65
- Morris, IN R+63
- St. Maurice, IN R+63
- Cross Roads, IN R+57
- Metamora, IN R+69
- New Point, IN R+63
- Oak Forest, IN R+67
Cities with Similar Populations
- Tremont City, OH R+46
- Heritage Hills, NY D+15
- Sageeyah, OK R+58
- Preston, IA R+42
- Lawtell, LA R+9
- Fisher, WV R+66
- Allensville, PA R+74
- Kopperl, TX R+72
- Key Center, WA R+3
- Wood River Junction, RI R+11
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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.