Mendeltna (Bendilna’ in Ahtna) is a census-designated place (CDP) in Copper River Census Area, Alaska, United States.

Mendeltna first reported on the 1990 U.S. Census as a census-designated place (CDP).

As of the census[5] of 2000, there were 63 people, 23 households, and 14 families residing in the CDP.

30.4% of all households were made up of individuals, and 8.7% had someone living alone who was 65 years of age or older.

There were no families and none of the population living below the poverty line, including no under eighteens and none of those over 64.