Hawaii Counties by Population (2025)

There are 5 counties in Hawaii.

Honolulu County is the largest county in the state, with a population of 978,568. The most recent census shows that its population has decreased by 0.03% since the previous census.

A number of other Hawaii counties also boast relatively large populations for their state, though not able to match the density of Honolulu County:

• Hawaii County : 210,149
• Maui County : 163,831

Hawaii Counties with the Fewest Residents

The smallest county in Hawaii is Kalawao County, with a population of just 81. This total represents a increase of 0.0% since the last census count was performed.

Other small counties include:

• Kauai County : 73,987
• Maui County : 163,831
• Hawaii County : 210,149

Hawaii Counties with Rapid Growth

Hawaii County, with its sizeable population of 210,149, has shown the largest population growth, with an increase of 0.0% since the last census.

Honolulu County has also had relatively high population growth of -0.03% with 978,568 residents.

On the other hand, Honolulu County has had the largest decrease in population, with its 978,568 current residents totalling 0.0% less than the previous census.