| Attribute |
Tonga × | 
Cook Islands × |
| Geography | | |
| Area (km²) | 747 | 236 |
| Continent | Australia | Australia |
| Land area (km²) | 717 | 236 |
| Water area (km²) | 30 | 0 |
| Land boundaries (km) | 0 | 0 |
| Coastline (km) | 419 | 120 |
| Lowest point (m) | 0 | 0 |
| Highest point (m) | 1,046 | 652 |
| People | | |
| Population | 106,095 | 8,574 |
| Official languages | | - Cook Islands Maori (Rarotongan)
- English
|
| Religion | Protestant | Protestant |
| Government | | |
| Long country name | Kingdom of Tonga | - |
| Short country name | Tonga | Cook Islands |
| Long local name | Pule'anga Fakatu'i 'o Tonga | - |
| Short local name | Tonga | - |
| Former name | | |
| Government type | Constitutional monarchy | Self-governing parliamentary democracy |
| Capital | Nuku'alofa | Avarua |
| Economy | | |
| GDP (PPP) (USD) | 591,000,000 | 299,900,000 |
| GDP (OER) (USD) | 455,000,000 | 299,900,000 |
| GDP (real growth rate) (%) | 2.5 | 0.1 |
| GDP - per capita (PPP) (USD) | 5,900 | 16,700 |
| Labor force | 33,800 | 6,820 |
| Unemployment rate (%) | 1.1 | 13.1 |
| Population below poverty line (%) | 22.5 | - |
| Budget revenues (USD) | 181,200,000 | 86,900,000 |
| Budget expenditures (USD) | 181,200,000 | 77,900,000 |
| Taxes and other revenues (% of GDP) | 39.8 | 29 |
| Budget surplus or deficit (% of GDP) | 0 | 3 |
| Public debt (% of GDP) | 48 | - |
| Inflation rate (%) | 7.4 | 2.2 |
| Commercial bank prime lending rate (%) | 8 | - |
| Stock of narrow money (USD) | 130,800,000 | 38,990,000 |
| Stock of broad money (USD) | 130,800,000 | 148,200,000 |
| Stock of domestic credit (USD) | 139,200,000 | - |
| Current account balance (USD) | -53,000,000 | 26,670,000 |
| Exports (USD) | 18,400,000 | 3,125,000 |
| Imports (USD) | 250,200,000 | 109,300,000 |
| Reserves of foreign exchange and gold (USD) | 198,500,000 | - |
| External debt (USD) | 189,900,000 | 141,000,000 |
| National currency | pa'anga | NZ dollars |
| National currency (code) | TOP | NZD |
| National currency (symbol) | T$ | $ |
| National currency rate to USD | 2.228 | 1.416 |