Hālawa is a census-designated place (CDP) in the ‘Ewa District of Honolulu County, Hawaii, United States. Hālawa Stream branches into two valleys: North and South Hālawa; North Hālawa is the larger stream and fluvial feature. Their confluence is within the H-3/H-201 highways exchange. Most of Hālawa Valley is undeveloped. As of the 2020 census, the CDP had a population of 15,016.

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