2020 Decennial Census Demographic Profiles and DHC Data Released

Posted on May 25, 2023 in Decennial Census, Featured, Main, Whats New Releases

Today, the U.S. Census Bureau released the 2020 Census Demographic Profile and Demographic and Housing Characteristics File (DHC).

This release includes data and cross tabulations by age group, race group, Hispanic or Latino origin, and sex. There are additional data on families, households, and group quarters. These releases do not include detailed race data. Those data will be released in the Detailed DHC-A data, expected in September 2023.

The Demographic Profile provides an overview of 2020 Census data down to the tract level, and the DHC provides detailed data down to the tract or block level. Blocks are the smallest unit of geography released by the Census Bureau. However, the Census Bureau encourages data users to aggregate small populations to improve accuracy.

Below are links to some key data and publications from this release:
Demographic Profiles for Hawaii’s geographies
Hawaii State Data Center (DBEDT) highlights
U.S. Census Bureau Press Release
U.S. Census Bureau Data Visualization: How Has Our Nation’s Population Changed?

From our State Data Center highlights


  • In 2020, Hawaii’s median age was 40.8 years, up 2.2 years from the 2010 decennial census (38.6 years).
  • Among the 50 states and Washington D.C., Hawaii ranked 9th in terms of oldest median age and 7th for highest share of population aged 65 and over (19.4%).
  • Between 2010 and 2020, Hawaii’s under 5 population declined 11.5%, and the under 18 population dropped by 1.5%. Comparatively, the U.S. under 5 population declined 8.9%, and the under 18 population dropped by 1.4%.


  • Hawaii’s multiracial population made up 25.3% of Hawaii’s population, up from 23.6% in 2010. The multiracial population in the United States was 10.2% of the total population in 2020.
  • Between 2010 and 2020, every major race alone group increased in Hawaii, except for the white alone group, which decreased by 1.0%.
  • Compared to people who identified as a single race, Hawaii’s multiracial (two or more races) group was younger, with a median age of 29.2 and 33.7% of the population under the age of 18.
  • Hawaii’s oldest race alone group is the Asian alone category, with a median age of 50.1 years. This group had the largest share of their population over the age of 65 and the second smallest share of their population under the age of 18.

Homeownership & Household Structures

  • Between 2010 and 2020, Hawaii’s homeownership increased from 57.7% to 58.8%. Most places—45 states and the District of Columbia—experienced declines in homeownership. Of the five states that experienced an increase in their homeownership rate, Hawaii had the largest percentage-point increase at 1.2 percentage points.
  • The percentage of married couple households declined from 2010 to 2020. In 2010, married couple households made up 50.5% of all households, and in 2020, they made up 49.0% of households.
  • The percentage of households compromised of a senior living alone increased by 2.6 percentage points, from 8.1% in 2010 to 10.8% in 2020.