Maunaloa or Mauna Loa is a census-designated place (CDP) in Maui County, Hawaiʻi, United States, in the western part of the island of Molokai. The population was 376 at the 2010 census.
Maunaloa is located at 21°8′11″N 157°12′51″W (21.136464, −157.214029).
According to the United States Census Bureau, the CDP has a total area of 0.73 square miles (1.9 km2), all of it land.
As of the census of 2000, there were 230 people, 65 households, and 52 families residing in the CDP. The population density was 1,374.6 people per square mile (522.4/km2). There were 91 housing units at an average density of 543.9 per square mile (206.7/km2). The racial makeup of the CDP was 15.7% White, 0.3% African American, 18.7% Asian, 34.4% Pacific Islander, and 30.9% from two or more races. Hispanic or Latino of any race were 5.2% of the population.
There were 65 households, out of which 50.8% had children under the age of 18 living with them, 56.9% were married couples living together, 18.5% had a female householder with no husband present, and 18.5% were non-families. 13.8% of all households were made up of individuals, and 1.5% had someone living alone who was 65 years of age or older. The average household size was 3.54 and the average family size was 3.96.
In the CDP the population was spread out, with 43.5% under the age of 18, 8.3% from 18 to 24, 25.2% from 25 to 44, 14.3% from 45 to 64, and 8.7% who were 65 years of age or older. The median age was 22 years.