| Total area | 1,110 km²World Bank WDI [2023] |
| Exclusive economic zone (EEZ) | No authoritative open source found |
| Administrative divisions (ADM1) | No authoritative open source found |
| Location | Eastern Asia, bordering the South China Sea and ChinaCIA World Factbook [2025] · 2026 archive |
| Coastline | 733 kmCIA World Factbook [2025] · 2026 archive |
| Land boundaries | 33 kmCIA World Factbook [2025] · 2026 archive |
| Bordering countries | No authoritative open source found |
| Terrain | hilly to mountainous with steep slopes; lowlands in northCIA World Factbook [2025] · 2026 archive |
| Climate | subtropical monsoon; cool and humid in winter, hot and rainy from spring through summer, warm and sunny in fallCIA World Factbook [2025] · 2026 archive |
| Natural resources | outstanding deepwater harbor, feldsparCIA World Factbook [2025] · 2026 archive |
| Highest point | Tai Mo Shan 958 mCIA World Factbook [2025] · 2026 archive |
| Lowest point | South China Sea 0 mCIA World Factbook [2025] · 2026 archive |
| Mean elevation | No authoritative open source found |
| Area (comparative) | six times the size of Washington, D.C.CIA World Factbook [2025] · 2026 archive |
| Natural hazards | occasional typhoonsCIA World Factbook [2025] · 2026 archive |
| Maritime claims | territorial sea: 12 nmCIA World Factbook [2025] · 2026 archive |