| Nationality | Bruneian(s) |
| Population (IMF 2010) | 422,000 |
| Annual population growth rate (2010 est.) | 1.733% |
| Age Structure (2010 est.) |
0-14 years: 26.6% (male 53,282/female 50,141) 15-64 years: 70.1% (male 135,640/female 136,292) 65 years and over: 3.3% (male 6,199/female 6,636) |
| Urbanization |
urban population: 75% of total population (2008) rate of urbanization: 2.6% annual rate of change (2005-10 est.) |
| Ethnic groups (2004 est.) | Malay 66.3%, Chinese 11.2%, indigenous 3.4%, other 19.1% |
| Languages | Malay (official), English, Chinese |
| Religion | Muslim (official) 67%, Buddhist 13%, Christian 10%, other (includes indigenous beliefs) 10% |
| Life expectancy | men 76.6 years, women 79.8 years |
| Infant mortality rate | 7.0/1000 |