| Place Name | Greencastle |
| Place Type | City |
| ZIP Code(s) | 46135 |
| County | Putnam County |
| Area Code(s) | 765 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2022) | 10,343 |
| Population Growth Rate (2010-19) | -4.90% |
| Majority Ethnicity | White 89.54% |
| Metro/Micro Stats Area | Indianapolis-Carmel-Anderson, IN |
| US Congressional District(s) | Indiana 4th |
| State House Districts | 44 |
| State Senate Districts | 24,37 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 89.54% |
| African American | 1.86% |
| Hispanic | 0.18% |
| Asian | 5.54% |
| Native American | 0.11% |
| Hawaiin/Pacific Islander | 2.77% |