| Place Name | St. Johns |
| Place Type | City |
| ZIP Code(s) | 48879 |
| County | Clinton County |
| Area Code(s) | 989 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2022) | 7,890 |
| Population Growth Rate (2010-19) | -2.12% |
| Majority Ethnicity | White 93.74% |
| Metro/Micro Stats Area | Lansing-East Lansing, MI |
| US Congressional District(s) | Michigan 4th |
| State House Districts | 93 |
| State Senate Districts | 24 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 93.74% |
| African American | 2.08% |
| Hispanic | 1.01% |
| Asian | 0.34% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 2.83% |