It appears on early maps as Ramouctou and La Rivière du Kamouctou (Freneuse seigneurial grant, 1684).

[3] It is the administrative headquarters of the Oromocto First Nation band government[4] and the site of Canadian Forces Base Gagetown, which dominates its economy and modern history.

On 1 January 2023, Oromocto annexed the local service district of the parish of Lincoln, excluding the Fredericton International Airport and a highway strip connecting it to the city.

This was made possible by an abundance of timber and sawmills, which continued to provide economic stability to Oromocto, even after the shipbuilding business had died out.

A business district in the area of Restigouche Road has become moderately successful, and the town features a small hospital, track and field facilities, and churches.

Where the town borders on CFB Gagetown, there is also a Canex with a salon and barbershop, hockey/squash arenas, swimming pool, and a credit union, along with military vehicles and aircraft on outdoor display.