Waimea is a landlocked census-designated place (CDP) in Hawaii County, Hawaii, United States. The population was 7,028 at the 2000 census and 9,212 at the 2010 census. Since each U.S. state cannot have more than one post office of the same name, and there is a post office in Waimea, Kauai County, the official U.S. Post Office designation for Waimea is Kamuela, although this name is only used by the post office, not by locals or the local government. The name Waimea means reddish water.

Hawaiʻi Preparatory Academy is a coeducational, private, day and international boarding school in Kamuela, Hawaiʻi, providing K-12 education. The school has an annual day tuition at the Lower School (K-5) of $22,900, $25,300 at the Middle School (6-8), and $29,600 at the Upper School (9-12). Boarding tuition is $59,100 & $69,400 in 2021/22.