Pearl City is a census-designated place (CDP) located in the ʻEwa District and City & County of Honolulu on the Island of Oʻahu. As of the 2000 Census, the CDP had a total population of 30,976. Pearl City is located along the north shore of Pearl Harbor. ʻAiea borders Pearl City to the east, while Waipahu borders the west. The U.S. postal code for Pearl City is 96782.