| Place Name | Trafalgar |
| Place Type | Town |
| ZIP Code(s) | 46181 |
| County | Johnson County |
| Area Code(s) | 317,463 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2022) | 1,190 |
| Population Growth Rate (2010-19) | 29.16% |
| Majority Ethnicity | White 98.55% |
| Metro/Micro Stats Area | Indianapolis-Carmel-Anderson, IN |
| US Congressional District(s) | Indiana 9th |
| State House Districts | 47 |
| State Senate Districts | 37 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 98.55% |
| African American | 0.54% |
| Hispanic | 0.27% |
| Asian | 0.63% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0% |