The Municipal area is considered small which covers about 4 square kilometre. But there is a future planning to enlarge the Municipal area as far as Penanjong to the North and to Serambangun on the South. Tutong Municipal Board administers Tutong Town as the Commercial Centre for Tutong District.

In 1921, Tutong Municipal Board began as The Sanitary Board and during that time British Resident was the Chairman of the Board. And in 1970, The Sanitary Board became Tutong Municipal Board headed by the Tutong District Officer as the Chairman of the Board since then. Soon after Brunei's Independence in January 1984, Tutong Municipal Board was placed under the Ministry of Home Affairs.