| Official Name: | St. Croix, Indiana |
| Settlement Type: | Unincorporated community |
| Pushpin Map: | Indiana#USA |
| Pushpin Label: | St. Croix |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Indiana |
| Subdivision Type2: | County |
| Subdivision Name2: | Perry |
| Subdivision Type3: | Township |
| Subdivision Name3: | Oil |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Coordinates: | 38.2239°N -86.5864°W |
| Elevation Ft: | 725 |
| Postal Code Type: | ZIP code |
| Postal Code: | 47576 |
| Area Code: | 812, 930 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 451415 |
St. Croix or Saint Croix is an unincorporated community in northern Oil Township, Perry County, in the U.S. state of Indiana.
The community lies along on the western edge of the Hoosier National Forest, near the intersection of State Road 62, Interstate 64, and State Road 37, northeast of the city of Tell City, the county seat of Perry County.[1] Main points of interest in St. Croix include Holy Cross Church, cemetery, and Church Hall as well as the Etienne Saw Mill and Bear Hollow Mulch. Although St. Croix is unincorporated, it had a post office, with the ZIP code of 47576.[2]
A colony of Catholics settled at St. Croix in 1849.[3] The community's namesake St. Croix (Holy Cross) church was founded in 1855.[4] A post office was established in St. Croix in 1880, but has since closed.[5]