Mākaha Valley is a census-designated place (CDP) in Honolulu County, Hawaiʻi, United States.

[3] According to the United States Census Bureau, the CDP has a total area of 4.1 square miles (10.7 km2), all of it land.

[4] As of the census[7] of 2000, there were 1,289 people, 426 households, and 311 families residing in the CDP.

There were 604 housing units at an average density of 551.0 per square mile (212.7/km2).

18.1% of all households were made up of individuals, and 3.1% had someone living alone who was 65 years of age or older.