Oman has a population of 3,969,824 (2025 est.) — growing at 1.7% per year, median age 27.5 years, life expectancy 77.4 years. It is ranked #40 of 195 in the Magna Country Rankings (Power 60.32/100). Full demographics — fertility, urbanization, languages, religions — are on its Magna Factbook country file below.