| Place Name | Mason Township (Cass County) |
| Place Type | Township |
| ZIP Code(s) | 49031 49112 49130 |
| County | Cass County |
| Area Code(s) | 269 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2021) | 2,862 |
| Majority Ethnicity | White 91.86% |
| Metro/Micro Stats Area | South Bend-Mishawaka, IN-MI |
| US Congressional District(s) | Michigan 6th |
| State House Districts | 59 |
| State Senate Districts | 21 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 91.86% |
| African American | 0.26% |
| Hispanic | 0.81% |
| Asian | 4.77% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 2.29% |