Hawaii population

US Census shows Hawaii’s population has grown 7% over the past decade

U.S. Census data released today pegs Hawaii’s population at 1,455,271, a 7% increase from the last decennial census in 2010.

Kauai and Hawaii counties saw the strongest percentage growth, at 9.2% and 8.4%, respectively. Kauai’s population was pegged at 73,298, an increase of 6,207 over the 10-year period, according to the data. Hawaii County’s population reached 200,629, with 15,550 new residents.

Honolulu’s population was 1,016,508, up 6.6%, with an influx of 63,301 since the 2010 census.

Maui County’s population grew 6.4% to 164,754, with 9,920 new residents during the same period.

Hawaii ranked 40th among the most populous states in the United States, unchanged from 2010, and 35th in numerical population change and 23rd in percentage change.

It’s no surprise that Hawaii is once again the most ethnically diverse state in the country, topping the US Census Bureau’s “diversity index,” which measures the likelihood of two randomly selected people being from different racial and ethnic groups.

Hawaii topped the index with a 76% probability, with California in second place with 69.7%.

Hawaii was also the only state with Asians making up the largest racial or ethnic group. New census data shows that 36.5% of island residents identify as “Asian only”. The next largest group was “non-Hispanic white alone” at 21.6%, followed by those who identified as “non-Hispanic, two or more races” – also known as multiracial.

Whites were the largest racial or ethnic group in three of the state’s four major counties: Hawaii (32.2%), Maui (31.5%) and Kauai (30.3%). In Honolulu, Asians made up 42.2% of residents.

Although still the most prevalent groups, the 2020 census indicated a decline of about one percentage point for Asians and Whites compared to 2010, with a slightly higher percentage of residents identifying as multiracial. And the percentage of whites has gone down a bit in all four counties.

Native Hawaiians and other Pacific Islanders did not show up in the three major racial or ethnic groups in any of the major counties.

The 2020 census results also showed Hawaii (21.8%) had the highest ‘diffusion score’, followed by Alaska (17.9%), Oklahoma (17.8%) ) and Nevada (16%). The Diffusion Score measures the percentage of residents who are not in the top three groups combined. Thus, the higher the score, the less the population is concentrated in the most widespread groups.

Hawaii joined Connecticut, Delaware, Massachusetts, New Jersey and Rhode Island as the only states with more housing units in 2020 than in 2010 in each of their counties. The 2020 census shows 561,066 dwellings statewide, up 8% from 2010.

Other census data showed an increase in Hawaii’s adult population, with 79.4% of residents age 18 and older, up 9.4% from the previous census. Hawaii ranked 13th in percentage of adult population.

Nationally, the figure was 77.9%, up 10.1% from the 2010 census.