| Place Name | Dennison |
| Place Type | City |
| ZIP Code(s) | 55018 |
| County | Goodhue County |
| Area Code(s) | 507 |
| Timezone | Central Daylight Time (CDT) |
| Population (2022) | 134 |
| Population Growth Rate (2010-19) | 5.19% |
| Majority Ethnicity | White 98.58% |
| Metro/Micro Stats Area | Red Wing, MN |
| US Congressional District(s) | Minnesota 2nd |
| State House Districts | 58B |
| State Senate Districts | 58 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 98.58% |
| African American | 0% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 1.42% |