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Country comparison

Cook IslandsvsTonga

See the biggest differences first, then scan the geographic, economic, and practical reference data.

This comparison uses the latest available atlas values for each country; reporting years can differ by metric.

What stands out

Proportional bars and relative differences make the headline numbers easier to read.

Population

🇨🇰 Cook IslandsNo data
🇹🇴 Tonga104,175

Population data is unavailable for the Cook Islands, so a relative difference cannot be calculated.

Surface area

🇨🇰 Cook IslandsNo data
🇹🇴 Tonga750 km²

Surface area data is unavailable for the Cook Islands, so a relative difference cannot be calculated.

Population density

🇨🇰 Cook IslandsNo data
🇹🇴 Tonga139 /km²

Population density data is unavailable for the Cook Islands, so a relative difference cannot be calculated.

Nominal GDP

🇨🇰 Cook IslandsNo data
🇹🇴 Tonga$591.1 million · 2023

Nominal GDP data is unavailable for the Cook Islands, so a relative difference cannot be calculated.

GDP per capita

🇨🇰 Cook IslandsNo data
🇹🇴 Tonga$5,652 · 2023

GDP per capita data is unavailable for the Cook Islands, so a relative difference cannot be calculated.

Values use the latest available observations in WorldSumma. Economic reporting years are shown when available and can differ by country.

Full side-by-side comparison

Capital

Avarua

Nuku'alofa

Population

—

104,175

Surface area

—

750 km²

Population density

—

139 /km²

Nominal GDP

—

$591.1 million · 2023

GDP per capita

—

$5,652 · 2023

Region

Oceania

Oceania

Subregion

Polynesia

Polynesia

Currency

New Zealand dollar · NZD · $

Tongan paʻanga · TOP · $

Nationality

Cook Island

Tongan

Phone code

+682

+676

Internet domain

.ck

.to

ISO codes

CK / COK

TO / TON

Time zone

Pacific/Rarotonga

Pacific/Tongatapu

Native name

Cook Islands

Tonga

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About Cook Islands

The Cook Islands, a tropical paradise in the South Pacific, is a self‑governing nation of 15 small islands known for its crystal‑clear lagoons, friendly locals, and a unique blend of Polynesian heritage and modern island life.

Full Cook Islands profile →

About Tonga

Tonga is a Polynesian kingdom in the South Pacific, the last remaining monarchy among the Pacific island nations. Spread across more than 170 islands, it is sometimes called the Friendly Islands, a name given by Captain Cook. Proud of never having been formally colonised, Tonga maintains a strong sense of tradition, faith and royal heritage.

Full Tonga profile →

Cook Islands & Tonga: Frequently Asked Questions

What is the capital of Cook Islands?

The capital of Cook Islands is Avarua.

What currency is used in Cook Islands?

Cook Islands uses the New Zealand dollar (NZD), with the symbol $.

Where is Cook Islands located?

Cook Islands is located in Polynesia, Oceania.

What are people from Cook Islands called?

People from Cook Islands are referred to as Cook Island.

What is the phone calling code for Cook Islands?

The international dialing code for Cook Islands is +682.

What is the internet domain for Cook Islands?

The country code top-level domain (ccTLD) for Cook Islands is .ck.

What time zone is Cook Islands in?

Cook Islands uses the Pacific/Rarotonga time zone.

What is Cook Islands known for?

The Cook Islands, a tropical paradise in the South Pacific, is a self‑governing nation of 15 small islands known for its crystal‑clear lagoons, friendly locals, and a unique blend of Polynesian heritage and modern island life.

What is the capital of Tonga?

The capital of Tonga is Nuku'alofa.

What is the population of Tonga?

Tonga has a recorded population of approximately 104,175 people.

How big is Tonga?

Tonga covers an area of about 750 km².

What is the population density of Tonga?

Tonga has a population density of roughly 139 /km² (people per square kilometre).

What is the GDP of Tonga?

Tonga has a gross domestic product (GDP) of approximately $591.1 million as of 2023.

What is the GDP per capita of Tonga?

Tonga has a GDP per capita of approximately $5,652.

What currency is used in Tonga?

Tonga uses the Tongan paʻanga (TOP), with the symbol $.

Where is Tonga located?

Tonga is located in Polynesia, Oceania.

What are people from Tonga called?

People from Tonga are referred to as Tongan.

What is the phone calling code for Tonga?

The international dialing code for Tonga is +676.

What is the internet domain for Tonga?

The country code top-level domain (ccTLD) for Tonga is .to.

What time zone is Tonga in?

Tonga uses the Pacific/Tongatapu time zone.

What is Tonga known for?

Tonga is a Polynesian kingdom in the South Pacific, the last remaining monarchy among the Pacific island nations. Spread across more than 170 islands, it is sometimes called the Friendly Islands, a name given by Captain Cook. Proud of never having been formally colonised, Tonga maintains a strong sense of tradition, faith and royal heritage.