Dallas
- County:
- DeKalb County
- County Seat:
- No
- Area (mi²):
- 42.156
- State:
- Missouri
Dallas is located in DeKalb County, Missouri. Dallas has a 2025 population of 268 . Dallas is currently declining at a rate of -0.37% annually and its population has decreased by 0% since the most recent census, which recorded a population of 268 in 2020.
The median age in Dallas is 28.5 years: 36 years for males, and 28.4 years for females. For every 100 females there are 98.7 males.