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

This comparison uses the latest available atlas values for each country; reporting years can differ by metric.
Proportional bars and relative differences make the headline numbers easier to read.
Population data is unavailable for the Cook Islands, so a relative difference cannot be calculated.
Surface area data is unavailable for the Cook Islands, so a relative difference cannot be calculated.
Population density data is unavailable for the Cook Islands, so a relative difference cannot be calculated.
Nominal GDP data is unavailable for the Cook Islands, so a relative difference cannot be calculated.
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.
Avarua
Nuku'alofa
—
104,175
—
750 km²
—
139 /km²
—
$591.1 million · 2023
—
$5,652 · 2023
Oceania
Oceania
Polynesia
Polynesia
New Zealand dollar · NZD · $
Tongan paʻanga · TOP · $
Cook Island
Tongan
+682
+676
.ck
.to
CK / COK
TO / TON
Pacific/Rarotonga
Pacific/Tongatapu
Cook Islands
Tonga
| Measure | Cook Islands | Tonga |
|---|---|---|
| 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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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 →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 →The capital of Cook Islands is Avarua.
Cook Islands uses the New Zealand dollar (NZD), with the symbol $.
Cook Islands is located in Polynesia, Oceania.
People from Cook Islands are referred to as Cook Island.
The international dialing code for Cook Islands is +682.
The country code top-level domain (ccTLD) for Cook Islands is .ck.
Cook Islands uses the Pacific/Rarotonga time zone.
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.
The capital of Tonga is Nuku'alofa.
Tonga has a recorded population of approximately 104,175 people.
Tonga covers an area of about 750 km².
Tonga has a population density of roughly 139 /km² (people per square kilometre).
Tonga has a gross domestic product (GDP) of approximately $591.1 million as of 2023.
Tonga has a GDP per capita of approximately $5,652.
Tonga uses the Tongan paʻanga (TOP), with the symbol $.
Tonga is located in Polynesia, Oceania.
People from Tonga are referred to as Tongan.
The international dialing code for Tonga is +676.
The country code top-level domain (ccTLD) for Tonga is .to.
Tonga uses the Pacific/Tongatapu time zone.
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.