Biohazard Cleanup Near Mapunapuna Honolulu, HI

Honolulu's name means 'sheltered harbor' or 'calm port' in Hawaiian, and the city sits on the southeast coast of the island of O'ahu.

Evidence of Polynesian settlement at Honolulu dates to the 11th century; King Kamehameha III moved the capital of the Hawaiian Kingdom from Lahaina to Honolulu in 1845, and the city was incorporated on April 30, 1907.

Honolulu is the capital and most populous city of Hawaii and the seat of the consolidated City and County of Honolulu, which covers all of O'ahu and had 1,016,508 residents in the 2020 census.

Urban Honolulu itself had 350,964 residents in the 2020 census, with an estimated 341,868 in 2025 and about 137,000 households.

Only about 48.9% of Honolulu homes are owner-occupied, and the median value of an owner-occupied home is $843,400 - among the highest of any major U.S. city - with an average of 2.45 people per household.

Honolulu's 'Iolani Palace, built in 1882 under King Kalakaua, is the only royal palace in the United States.

Honolulu's Waikiki district is the center of Hawaii's tourism industry, and the city also contains Diamond Head crater and Pearl Harbor, where the December 7, 1941 attack drew the United States into World War II.

Honolulu is both the westernmost and the southernmost major city in the United States, and its island of O'ahu holds about 70% of Hawaii's population.

Honolulu is home to the University of Hawaii at Manoa, the flagship campus of the University of Hawaii system, along with Hawaii Pacific University, Chaminade University of Honolulu, Kapiolani Community College, and Honolulu Community College.