QuickFacts Hawaii. QuickFacts provides statistics for all states and counties, and for cities and towns with a population of 5,000 or more. Hawaii’s latest population estimates data are now available on our DBEDT website. Daily Estimated Population Averages for the State of Hawaii: 2016 to 2017 On J, the resident population for the State of Hawaii was 1,428,683. Hawaii has a de facto population of over 1.4 million, due in part to a large number of military personnel and tourist residents. O'ahu is the most populous island; it has the highest population density with a resident population of just under one million in 597 square miles (1,546 km 2), approximately 1,650 people per square mile. The population of Hawaii fell in 2017 for only the third time since 1959. High housing costs are likely to blame. From 2000 to 2010, Hawaii's population grew by 12.3%, a statistic attributed largely to consistent migration to the Islands. Hawaii's current population is 1,360,301 with around 953,207 people (70%) living in the City and County of Honolulu. At the 2010 census the population of Hawaii was declared at a total of 1,360,301. Estimates of the population are produced in the years between censuses - and in 2015, this number had risen to 1,431,603. This represents a 5.2% increase from the 1.36 million recorded during the 2010 Census. Hawaii Population demographics 2017 2016, Hawaii Population demographics 2017 2016, Hawaii Population demographics 2017 2016, Hawaii Demographics demographics 2017. How large are each of the islands of Hawaii, and what is the population of each island? Answer here. Maui Hawaii Questions and Answers - Help planning your Maui. According to the U.S. Census Bureau, the county has a total area of 5,086 square miles (13,170 km 2), of which 4,028 square miles (10,430 km 2) is land and 1,058. QuickFacts Honolulu County, Hawaii. QuickFacts provides statistics for all states and counties, and for cities and towns with a population of 5,000 or more.