Honokaa is a census-designated place located in the U.S. state of Hawaii. It is within Hawaii County in the Hamakua District. It has a total area of 1.27 square miles at 20°4′39″N 155°27′51″W. The elevation is 994 feet above sea level. As of the 2010 census data, it had a total population of 2,258. The population density was 1,783/sq mi. Estimated per capita income in 2016 was $24,067. It has Zip code 96727.