In the CDP the population was spread out with 26.0% under the age of 18, 9.9% from 18 to 24, 26.7% from 25 to 44, 21.6% from 45 to 64, and 15.8% who were 65 years of age or older. The median age was 36 years. For every 100 females, there were 101.0 males. For every 100 females age 18 and over, there were 96.3 males. The median income for a household in the CDP was $34,786, and the median income for a family was $43,393. Males had a median income of $31,125 versus $25,938 for females. The per capita income for the CDP was $16,224. About 16.7% of families and 17.8% of the population were below the poverty line, including 26.5% of those under age 18 and 6.0% of those age 65 or over. The Old Sugar Mill of Koloa was the first major sugarcane plantation in Hawaii in 1835. Missionary Daniel Dole and his family opened a boarding school for English-speaking children, sometimes called the Koloa Academy, in 1855.