Fern Forest, Hawaii
Fern Forest is a small census-designated place on the Big Island of Hawaii. It is in Hawaiʻi County, in the District of Puna. The community covers about 12.5 square miles of mostly land and sits about 2,260 feet (690 meters) above sea level. As of 2020, about 1,150 people lived there, up from 931 in 2010. The ZIP code is 96785 and the area code is 808. Fern Forest is in the Hawaii-Aleutian Time Zone (UTC-10).
This page was last edited on 3 February 2026, at 05:48 (CET).