| Place Name | Cassian |
| Place Type | Town |
| ZIP Code(s) | 54487 54501 54529 54531 54539 |
| County | Oneida County |
| Area Code(s) | 535,715 |
| Timezone | Central Daylight Time (CDT) |
| Population (2021) | 1,067 |
| Majority Ethnicity | White 94.97% |
| US Congressional District(s) | Wisconsin 7th |
| State Assembly Districts | 34 |
| State Senate Districts | 12 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 94.97% |
| African American | 0% |
| Hispanic | 0.27% |
| Asian | 0.37% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 4.39% |