| Total area | 33 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 | 41 kmCIA World Factbook [2025] · 2026 archive |
| Land boundaries | 3 kmCIA World Factbook [2025] · 2026 archive |
| Bordering countries | No authoritative open source found |
| Terrain | generally flatCIA World Factbook [2025] · 2026 archive |
| Climate | subtropical; marine with cool winters, warm summersCIA World Factbook [2025] · 2026 archive |
| Natural resources | NEGLCIA World Factbook [2025] · 2026 archive |
| Highest point | Alto Coloane 172 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) | less than one-sixth the size of Washington, D.C.CIA World Factbook [2025] · 2026 archive |
| Natural hazards | typhoonsCIA World Factbook [2025] · 2026 archive |
| Maritime claims | not specifiedCIA World Factbook [2025] · 2026 archive |