Dahlen
- County:
- Nelson County
- County Seat:
- No
- Area (mi²):
- 0.14
- State:
- North Dakota
Dahlen is a CDP located in Nelson County, North Dakota. Dahlen has a 2025 population of 35 . Dahlen is currently growing at a rate of 6.06% annually and its population has increased by 218.18% since the most recent census, which recorded a population of 11 in 2020.
The median age in Dahlen is 53.1 years: 0 years for males, and 49.4 years for females. For every 100 females there are 66.7 males.