Dennison
- County:
- Goodhue County
- County Seat:
- No
- Area (mi²):
- 1.253
- State:
- Minnesota
Dennison is a city located in Goodhue County, Minnesota. Dennison has a 2026 population of 218. Dennison is currently declining at a rate of 0% annually and its population has decreased by -1.36% since the most recent census, which recorded a population of 221 in 2020.
The median household income in Dennison is $55,000 with a poverty rate of 4.52%. The median age in Dennison is 37.5 years: 40.8 years for males, and 33.5 years for females. For every 100 females there are 110.4 males.