| Place Name | Oasis |
| Place Type | Town |
| ZIP Code(s) | 54909 54966 |
| County | Waushara County |
| Area Code(s) | 535,715,274,920 |
| Timezone | Central Standard Time (CST) |
| Population (2021) | 361 |
| Majority Ethnicity | White 91.6% |
| US Congressional District(s) | Wisconsin 6th |
| State Assembly Districts | 72 |
| State Senate Districts | 24 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 91.6% |
| African American | 2.24% |
| Hispanic | 0% |
| Asian | 4.2% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 1.96% |