Bayombong is a philippine municipality in the province Nueva Vizcaya in Region II Cagayan Valley which belongs to the Luzon group of islands. The municipality Bayombong is seated about 211 km north of Philippine main capital Manila.
Bayombong is a 1st class municipality. Regarding urbanization Bayombong is classified as partly urban. Bayombong occupies an area of 136.00 km². By the end of 2007 Bayombong was the home of 54,417 residents. Thus by average 400.13 people are living on one km².
Administratively the Municipality of Bayombong is subdivided into 25 barangays. 4 compose the center of the city wheras the other 21 are in the outlying areas. Some of them are even several kilometers away from the center of the Municipality. The most populous are Ipil-Cuneg, Cabuaan, Bansing, Magapuy, Luyang, La Torre South, Don Domingo Maddela Pob. (District I), Casat, Don Tomas Maddela Pob. (District II), Paitan, La Torre North, Bonfal East, Don Mariano Marcos, District III Pob. (Don M. Perez), San Nicolas North (Luyang).
Among the bigger cities and municipalities in the neighborhood of Bayombong there are City Of Santiago (Isabela) 48 km east-north-east, San Jose City (Nueva Ecija) 79 km south-south-west, Malasiqui (Pangasinan) 100 km south-west, Dagupan City (Pangasinan) 99 km west-south-west, City Of Urdaneta (Pangasinan) 83 km south-west, Baguio City (Benguet) 59 km west, Mangaldan (Pangasinan) 92 km west-south-west, City Of Cauayan (Isabela) 83 km north-east, La Trinidad (Benguet) 60 km west as well as 90 km west of Bayombong the municipality City Of San Fernando (La Union).