| Place Name | Oldenburg |
| Place Type | Town |
| ZIP Code(s) | 47036 |
| County | Franklin County |
| Area Code(s) | 812,930 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2022) | 594 |
| Population Growth Rate (2010-19) | -4.01% |
| Majority Ethnicity | White 98.73% |
| Metro/Micro Stats Area | Cincinnati, OH-KY-IN |
| US Congressional District(s) | Indiana 6th |
| State House Districts | 55 |
| State Senate Districts | 42 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 98.73% |
| African American | 0% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 1.27% |