Mendeltna
- County:
- Copper River Census Area
- County Seat:
- No
- Area (mi²):
- 451.681
- State:
- Alaska
Mendeltna is a CDP located in Copper River Census Area, Alaska. Mendeltna has a 2025 population of 111. Mendeltna is currently growing at a rate of 6.73% annually and its population has increased by 344% since the most recent census, which recorded a population of 25 in 2020.
The median age in Mendeltna is 53.7 years: 0 years for males, and 0 years for females.