| Place Name | St. John |
| Place Type | City |
| ZIP Code(s) | 58369 |
| County | Rolette County |
| Area Code(s) | 701 |
| Timezone | Central Standard Time (CST) |
| Population (2022) | 342 |
| Population Growth Rate (2010-19) | -5.57% |
| Majority Ethnicity | Native American 0% |
| US Congressional District(s) | North Dakota At-Large |
| State House Districts | 9 |
| State Senate Districts | 9 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 19.16% |
| African American | 2.27% |
| Hispanic | 67.86% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 10.71% |