| Place Name | Rensselaer |
| Place Type | City |
| ZIP Code(s) | 47978 |
| County | Jasper County |
| Area Code(s) | 219 |
| Timezone | Central Standard Time (CST) |
| Population (2022) | 6,040 |
| Population Growth Rate (2010-19) | -2.15% |
| Majority Ethnicity | White 90.63% |
| Metro/Micro Stats Area | Chicago-Naperville-Elgin, IL-IN-WI |
| US Congressional District(s) | Indiana 4th |
| State House Districts | 16 |
| State Senate Districts | 5,7 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 90.63% |
| African American | 1.81% |
| Hispanic | 0% |
| Asian | 0.18% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 7.37% |