About This Place
Papaikou is a census-designated place (CDP) in Hawaii County, Hawaii, United States. The population was 1,414 at the 2000 census.
Papaikou is located at 19°47′38″N 155°5′48″W / 19.79389°N 155.09667°W / 19.79389; -155.09667 (19.794022, -155.096531).
According to the United States Census Bureau, the CDP has a total area of 2.0 square miles (5.3 km²), of which, 1.5 square miles (3.8 km²) of it is land and 0.6 square miles (1.5 km²) of it (27.94%) is water.