| Total population | 19,000,000 peopleUN DESA WPP [2024] 19,010,000 people·World Bank WDI [2024] 19,010,000 people |
| Median age | 15.5 yearsUN DESA WPP [2024] |
| Life expectancy | 58.8–59 yearsWorld Bank WDI [2024] 58.97 years·UNDP HDI [2023] 58.82 years |
| Ethnic groups | predominantly Somali with lesser numbers of Arabs, Bantus, and othersCIA World Factbook [2025] · 2026 archive |
| Languages | Somali (official), Arabic (official), Italian, EnglishCIA World Factbook [2025] · 2026 archive |
| Religions | Muslim 99.9% (Sunni Muslim 98.1%, Shia Muslim 1.2%, Islamic schismatic 0.6%), ethnic religionist 0.1% (2020 est.)CIA World Factbook [2025] · 2026 archive |
| Urbanization | 47.9% of total population (2023)CIA World Factbook [2025] · 2026 archive |
| Population growth | 3.48 %World Bank WDI [2024] |
| Birth rate | 42.3 per 1,000World Bank WDI [2024] |
| Death rate | 9.74 per 1,000World Bank WDI [2024] |
| Urban population | 54.6 %World Bank WDI [2024] |
| Languages (structured) | Aweer / Boon / Borana-Arsi-Guji Oromo / Chimwiini / Dabarre / Garre / Jiiddu / Maay / Somali / Standard Arabic / Swahili / TunniGlottolog [2026] |