| Place Name | St. Helen |
| Place Type | Census Designated Place |
| ZIP Code(s) | 48656 |
| County | Roscommon County |
| Area Code(s) | 989 |
| Timezone | Eastern Standard Time (EST) |
| Population (2022) | 2,751 |
| Population Growth Rate (2010-19) | 2.51% |
| Majority Ethnicity | White 96.66% |
| US Congressional District(s) | Michigan 4th |
| State House Districts | 103 |
| State Senate Districts | 35 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 96.66% |
| African American | 0.04% |
| Hispanic | 0% |
| Asian | 0.33% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 2.97% |