| Official Name: | Hillsdale, Louisiana |
| Pushpin Map: | Louisiana#USA |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Louisiana |
| Subdivision Type2: | Parish |
| Subdivision Name2: | St. Helena Parish |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 154 |
| Coordinates: | 30.7447°N -90.6208°W |
| Postal Code Type: | ZIP code |
| Postal Code: | 70422 |
| Area Code: | 225 985 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 560966 |
| Blank1 Name: | FIPS code |
| Blank1 Info: | 22-34820 |
Hillsdale is an unincorporated community in St. Helena Parish, Louisiana, United States. The community is located less than 4miles northeast of Montpelier, 6miles southeast of Greensburg and 6miles west of Amite City.