Waimanalo is a census-designated place (CDP) in the City & County of Honolulu, in the District of Koolaupoko on the island of Oahu, Hawaii, United States. This small windward community is located near the eastern end of the island. In the Hawaiian language Waimanalo means "potable water"; it is so named for the many brackish ponds in the area that were used for irrigation. As of the 2010 Census, the CDP had a population of 5,451.
Waimanalo is close to, but somewhat separated from, the neighborhood of Waimanalo Beach. Waimanalo has a small commercial center along Kalanianaole Highway, but is separated from the shoreline and Waimanalo Beach (the longest stretch of sandy shoreline on Oahu) by Bellows Air Force Station.
Waimanalo is noteworthy for its local flavor and large agricultural lots in the valley that extend back towards the Koolau from the center of town. Numerous plant nurseries are found in this area along with many horse ranches, stables and horse stalls to rent. Waimanalo is kind of a horse town, there are signs on the road warning of horse crossings. There is a huge polo field and many events year round for horse lovers. There are art galleries, tiny shops to enjoy and great places to eat.
Waimanalo is backed by the Ko'olau Mountain Range. The mountains are very pretty in this area - steep, jagged and covered with every shade of green.
There are no hotels in Waimanalo but you can find bed and breakfasts. Waimanalo is the site of Sea Life Park, located near Hawaii Kai on Kalanianaole Highway. The U.S. postal code for Waimanalo is 96795.