| Place Name | Keystone |
| Place Type | Town |
| ZIP Code(s) | 54806 54847 54856 |
| County | Bayfield County |
| Area Code(s) | 535,715 |
| Timezone | Central Standard Time (CST) |
| Population (2021) | 410 |
| Majority Ethnicity | White 89.25% |
| US Congressional District(s) | Wisconsin 7th |
| State Assembly Districts | 74 |
| State Senate Districts | 25 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 89.25% |
| African American | 0% |
| Hispanic | 6.75% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 4% |