Dennis
- County:
- Tishomingo County
- County Seat:
- No
- Area (mi²):
- 1.357
- State:
- Mississippi
Dennis is a CDP located in Tishomingo County, Mississippi. Dennis has a 2025 population of 26 . Dennis is currently growing at a rate of 8.33% annually but its population has decreased by -59.38% since the most recent census, which recorded a population of 64 in 2020.
The median age in Dennis is 36.3 years: 36.4 years for males, and 0 years for females. For every 100 females there are 221.4 males.