Cook Islands

Name: Cook Islands Population Statistics
Creator: Measured World
Published: 2024-07-01
License: https://creativecommons.org/licenses/by/3.0/igo/

1950

2025

2100

Cook Islands

1950

2025

2100

What to know

Population peaked at 20,869 in 1971. Now: 13,263.

Population is shrinking at -3.30% per year.

Projected to decline to 7,904 by 2100 (-40% from today).

Key statistics for 2025

Total population

13.3K

Density

55 people/km²

Median age

37.1 years

Growth rate

-3.44%

Key terms

Population growth rate: — Annual percentage change in total population size.
Population density: — People per square kilometre of land area.
Median age: — Age at which half the population is younger and half is older.
Sex ratio: — Number of males per 100 females in the population.

The trajectory

Population peaked in 1971

Total population from 1950 to 2100 (projections beyond 2024)

Since the 1971 peak, the population has declined by 36.4%.

Population structure

How is the population split by gender?

Male and female population with sex ratio trend

No population by gender data available.

The sex ratio of 95.5 males per 100 females is below the global average (~101).

Density & aging

Density

People per square kilometre

Median age

Age where half the population is younger

Population density is 55 people per km². The median age is projected to rise by 2 years by 2050, from 36.1 to 38.3.

Rate of change

How fast is the population changing?

Annual percentage change in population size

Growth peaked at 3.12% in 2007.

The bottom line

Cook Islands passed its population peak 54 years ago in 1971, and has since declined by 36.4%. The population is gradually aging, with median age projected to reach 38 by 2050. UN projections show a decline to 7.9K by 2100.

Source: UN World Population Prospects 2024. Historical estimates (1950–2024) and medium-variant projections (2025–2100).

What to know

Population peaked at 20,869 in 1971. Now: 13,263.

Population is shrinking at -3.30% per year.

Projected to decline to 7,904 by 2100 (-40% from today).

Key statistics for 2025

Total population

13.3K

Density

55 people/km²

Median age

37.1 years

Growth rate

-3.44%

Key terms

Population growth rate: — Annual percentage change in total population size.
Population density: — People per square kilometre of land area.
Median age: — Age at which half the population is younger and half is older.
Sex ratio: — Number of males per 100 females in the population.

The trajectory

Population peaked in 1971

Total population from 1950 to 2100 (projections beyond 2024)

Since the 1971 peak, the population has declined by 36.4%.

Population structure

How is the population split by gender?

Male and female population with sex ratio trend

No population by gender data available.

The sex ratio of 95.5 males per 100 females is below the global average (~101).

Density & aging

Density

People per square kilometre

Median age

Age where half the population is younger

Population density is 55 people per km². The median age is projected to rise by 2 years by 2050, from 36.1 to 38.3.

Rate of change

How fast is the population changing?

Annual percentage change in population size

Growth peaked at 3.12% in 2007.

The bottom line

Source: UN World Population Prospects 2024. Historical estimates (1950–2024) and medium-variant projections (2025–2100).

Cook Islands - Population Statistics | Measured World