| Total population | 4,900,000–4,930,000 peopleUN DESA WPP [2024] 4,935,000 people·World Bank WDI [2024] 4,897,000 people |
| Median age | 34.8 yearsUN DESA WPP [2024] |
| Life expectancy | 80.4–84.6 yearsWorld Bank WDI [2024] 84.58 years·UNDP HDI [2023] 80.41 years |
| Ethnic groups | Kuwaiti 30.4%, other Arab 27.4%, Asian 40.3%, African 1%, other 0.9% (includes European, North American, South American, and Australian) (2018 est.)CIA World Factbook [2025] · 2026 archive |
| Languages | Arabic (official), English widely spokenCIA World Factbook [2025] · 2026 archive |
| Religions | Muslim (official) 74.6%, Christian 18.2%, other and unspecified 7.2% (2013 est.); note: data represent the total population; about 72% of the population consists of immigrantsCIA World Factbook [2025] · 2026 archive |
| Urbanization | 100% of total population (2023)CIA World Factbook [2025] · 2026 archive |
| Population growth | 0.899 %World Bank WDI [2024] |
| Birth rate | 10 per 1,000World Bank WDI [2024] |
| Death rate | 1.52 per 1,000World Bank WDI [2024] |
| Urban population | 100 %World Bank WDI [2024] |
| Languages (structured) | Gulf Arabic / Kuwaiti Sign Language / Mehri / Najdi Arabic / Northern Kurdish / Standard ArabicGlottolog [2026] |