| Place Name | Round Lake |
| Place Type | City |
| ZIP Code(s) | 56167 |
| County | Nobles County |
| Area Code(s) | 507 |
| Timezone | Central Standard Time (CST) |
| Population (2022) | 380 |
| Population Growth Rate (2010-19) | 0.27% |
| Majority Ethnicity | White 95.17% |
| Metro/Micro Stats Area | Worthington, MN |
| US Congressional District(s) | Minnesota 1st |
| State House Districts | 22B |
| State Senate Districts | 22 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 95.17% |
| African American | 0% |
| Hispanic | 1.02% |
| Asian | 0.25% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 3.56% |