Urban Honolulu CDP Population Facts for July 1, 2018

News Release from DBEDT READ, May 23, 2019

The U.S. Census Bureau released its July 1, 2018 subcounty population estimates on May 23, 2019. These annual estimates cover all local governmental units, including incorporated places such as cities and towns.

Hawaii is the only state that has no incorporated places recognized by the U.S. Census Bureau.  Through an agreement with the Bureau, Urban Honolulu Census Designated Place (CDP) is the only subcounty area in Hawaii for which the Bureau provides population estimates on an annual basis. Urban Honolulu CDP encompasses an area bordered by Nimitz Highway, Aliamanu Drive, the Koolau Ridge, Waialae Nui Stream and Waialae Nui Canal. Statistics for the Urban Honolulu CDP are below.

On July 1, 2018, the Urban Honolulu CDP had a population of 347,397. This was an increase of 9,676 (2.9%) from April 1, 2010. This growth was comparable to the rest of the City and County of Honolulu’s growth, which grew 2.8% between April 1, 2010 and July 1, 2018. However, growth in the City and County of Honolulu is much lower than the other counties (Hawaii County: 8.6%; Maui County: 8.0%; and Kauai County: 7.5%) and lower than the state overall (4.4%). Both the Urban Honolulu CDP and the rest of Honolulu have experienced a population decline since 2016.

Urban Honolulu CDP accounted for 35.4% of Oahu’s population in 2018, with just under two-thirds of Oahu’s population living outside of the Urban Honolulu CDP. Urban Honolulu’s share of the population has changed very little over time, varying between 35.4% to 35.5% of Oahu’s population since 2010.

The Urban Honolulu CDP area ranked 56th in population among 780 incorporated places in the U.S. with a population of 50,000 or more in 2018. Urban Honolulu’s ranking from April 1, 2010 was 53rd among 769 incorporated places with a population of 50,000 or more. Ranking is based on population size, with the largest being ranked first. New York City was the largest city in the U.S. with 8.4 million people, followed by Los Angeles with a population of 4.0 million, and Chicago with 2.7 million people. Houston (2.3 million) and Phoenix (1.7 million) rounded out the top five largest incorporated places.

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HNN: Urban Honolulu’s population declined for a 4th consecutive year in 2018