Tutong's 2026 population is now estimated at 48,691. In 1997, the population of Tutong was 35,200. Tutong has grown by 96 in the last year, which represents a 0.2% annual change. These population values and projections come from DEPS population by district annual estimates (1997-2024 excluding census years), DEPS population by district census years (2001, 2011, 2016, 2021) and World Population Review Internal Projections .