| Place Name | Johnstown Township |
| Place Type | Township |
| ZIP Code(s) | 49017 49021 49046 49050 49073 |
| County | Barry County |
| Area Code(s) | 269 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2021) | 2,857 |
| Majority Ethnicity | White 93.8% |
| US Congressional District(s) | Michigan 3rd |
| State House Districts | 87 |
| State Senate Districts | 19 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 93.8% |
| African American | 0.39% |
| Hispanic | 0.71% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 5.1% |