Population of Northern Mariana Islands

As of April 2025, the population of Northern Mariana Islands is 50.2 thousand. The number of inhabitants has increased by 231 in the last year, representing a growth of 0.46%. The median age of the population has increased in recent years, rising from 35.5 years in 2015 to 37.3 years in 2025. Currently, life expectancy at birth is 77.9 years and population density is 110 inhabitants per square kilometer.

Population Growth

The population growth rate of Northern Mariana Islands peaked in 1996, reaching around 13.65% annually, but has since declined to approximately 0.46% in 2025. The annual increase in the number of people has also decreased from a peak of around 7.74 thousand in 1998 to nearly 231 in 2025.

Life Expectancy

Life expectancy at birth has increased slightly in Northern Mariana Islands, with the indicator rising from 77 years in 2005 to 77.9 year in 2025, representing an increase of almost 1 year over the past 2 decades.