Amulung was officially founded on December 15, 1734 by Manuel Romero who was then alcalde mayor of the province. Romero gave an image of "Our Lady of Victory" to the inhabitants of the town, then a barrio of Iguig. It was enshrined in its first church built somewhere in 1746.

Predominantly populated by the Ilocanos and Itawes, it is in this municipality where quaint dialects are spoken. Some Spanish precede the Itawes translation so that the same sentence or question is substantially stated or asked twice. An example of which would be: "Desde cuando, kanni labbet nu?". A sample answer: "Ayer, katucabi" ("Yesterday")

Amulung is a mere 25 minute ride to Tuguegarao for it is only 26 kilometers away. Right now it is a fourth class municipality.