Heeia is a census-designated place comprising several neighborhoods located in the City & County of Honolulu and the Koolaupoko District on the island of north of . In Hawaiian the words hee ia mean "washed away", alluding to a victory achieved by the populace against others from leeward Oahu, aided by a tsunami that washed the combatants off the shore.
Heeia includes Haikū Valley and Heeia Kea. The population was 4,963 at the 2010 census. The area is almost entirely one of homes and apartments. Parts of Heeia lie along Kāneohe Bay, but public access is non-existent owing to private ownership of the property behind the shore.
Notable in the Heeia area are:
Heeia Kea is a community and small, undeveloped valley separated from Heeia by Heeia Marsh and Kealohi Point. Heeia Kea Small Boat Harbor, the only public pier and boat ramp on , is found here. Several fishponds have been restored in recent years. Although fishponds were developed on most of the islands, the largest concentrations were found in Keehi Lagoon, Pearl Harbor, and Kāneohe Bay on Oahu.
The U.S. postal code for Heeia and Heeia Kea is the same as for Kāneohe: 96744.