The Municipality of Naguilian is located in the second district of La Union. It is bounded in the northwest by San Fernando, the capital of La Union; in the northeast by the town of Bagulin; in the east by the town of Burgos; in the southwest by the town of Caba; in the west by the town of Bauang, and in the southeast by the town of Sablan in the province of Benguet.
Its tagline “Tattan Naguilian” literally means “Now, Naguilian!” Naguilian was derived from the Iloco word “Nag-ili-an” which means a place where visitors come to stay. This town is accessible with almost all public utility vehicles plying the Bauang-Naguilian Highway traversing the Baguio-La Union route. The interior barangays can be accessed by all modes of land transportation as it is mostly landlocked and the road network is already established within the municipality. Naguilian is approximately 269 kilometers from Manila, 38 kilometers from Baguio City, and 18 kilometers from the City of San Fernando.
Naguilian is a progressive agricultural town known largely for its high value crops and their sugarcane plantation with which the “basi”, a local wine and the “sukang iloko” (vinegar) are produced.