As of May 2025, the population of Saint Pierre and Miquelon is 5.8 thousand. The number of inhabitants has decreased by 30 in the last year, representing a decline of 0.48%. The median age of the population has increased in recent years, rising from 43.4 years in 2015 to 45.3 years in 2025. Currently, life expectancy at birth is 78.1 years and population density is 25.2 inhabitants per square kilometer.
The population growth rate of Saint Pierre and Miquelon peaked in 1973, reaching around 1.9% annually, but has since declined to approximately -0.52% in 2025. The annual increase in the number of people has also decreased from a peak of around 111 in 1973 to nearly -30 in 2025.
In Saint Pierre and Miquelon, life expectancy at birth has been increasing, with the indicator rising from 76.7 years in 2005 to 78.1 year in 2025, representing an increase of more than 1 year over the past 2 decades.