Ahuimanu or ʻĀhuimanu (Hawaiian pronunciation: [ʔaːhuwiˈmɐnu]) is a census-designated place (CDP) in the City & County of Honolulu, Hawaii, United States, on the island of Oahu. In Hawaiian ʻāhui-manu means "cluster of birds".

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Ahuimanu ʻĀhuimanu
Census-designated place
Ahuimanu looking towards Kaneohe Bay
Location in Honolulu County and the state of Hawaii
Coordinates: 21°26′36″N 157°50′24″W
Country	United States
State	Hawaii
County	Honolulu
Area [1]
• Total	2.69 sq mi (6.98 km2)
• Land	2.69 sq mi (6.98 km2)
• Water	0.00 sq mi (0.00 km2)
Elevation	82 ft (25 m)
Population  (2020)
• Total	8,969
• Density	3,329.25/sq mi (1,285.20/km2)
Time zone	UTC-10 (Hawaii-Aleutian)
ZIP code	96744[2]
Area code	808
FIPS code	15-00400
GNIS feature ID	0358445

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Ahuimanu is spread out beneath the steep windward pali (cliff face) of the Koolau mountain and separated by a low ridge from Heeia Kea. Thus, this area is mostly inland and not directly on Kaneohe Bay. However, one neighborhood spreads over the ridge and along Kamehameha Highway where there is private access to the bay shore. Proximity to the pali gives the place a generally wet climate. As of the 2010 Census, this largely residential area had a population of 8,810.^[3] A small commercial mall is located here across the highway from the Valley of the Temples Memorial Park, a large cemetery noted for its Byodo-In Temple.

The U.S. postal code for Ahuimanu is 96744.

Ahuimanu is located at on the east side of Oahu 21°26′36″N 157°50′24″W (21.443273, -157.840111).^[4] Nearby communities include Heeia and Kaneohe to the south along State Route 83 (the Kahekili Highway), and Kahaluu, with which it merges to the north.

According to the United States Census Bureau, the CDP has a total area of 2.7 square miles (7.0 km²), all land.^[5]

In 2010 there were 8,810 people (3,270.2 per square mile), 2,745 households, and 2,246 families residing in the CDP according to the 2010 United States Census.^[7] There were 2,826 housing units with 97.1% of them occupied. The racial makeup of the CDP was 22.0% White, 0.7% Black or African American, 0.1% American Indian and Alaska Native, 31.1% Asian, 9.6% Native Hawaiian and Other Pacific Islander, 0.4% from other races, and 36.2% from two or more races. Hispanic or Latino of any race were 9.4% of the population.

There were 2,745 households, out of which 40.4% had children under the age of 18 living in them, 63.8% were Husband-wife families living together, 12.8% had a female householder with no husband present, and 18.2% were non-families. 12.8% of all households were made up of single individuals and 3.5% had someone living alone who was 65 years of age or older. The average household size was 3.19 and the average family size was 3.44.

In the CDP, the median age was 39.2 years. 78.6% were 16 years and over, 76.1% were 18 years and over, 72.6% were 21 years and over, 15.8% were 62 years and over, and 11.7% were 65 years and over.

The median income for a household in the CDP in 2013-2017 was $103,825.^[8] The per capita income during the same time period for the CDP was $39,940. About 5.2% of the population was below the poverty line.

Ahuimanu Elementary School, located adjacent to but not inside the CDP,^[9][10] is a public, coeducational grade school of the Hawai'i State Department of Education that serves around 400 students in grades K-6. It is located in the community of Temple Valley, Ahuimanu in the ahupua'a of Kāne'ohe near the Ko'olau mountains on the island of Oahu.

Saint Louis School was originally located in the ʻĀhuimanu area of windward Oʻahu as the College of ʻĀhuimanu, founded in 1846 by the Fathers of the Congregation of the Sacred Hearts of Jesus and Mary. In 1881, the school was relocated to Honolulu.^[11]