Cabagan is a 2nd class municipality in the province of Isabela. Cabagan had been the business center of three nearby towns (Santa Maria, San Pablo and Santo Tomas) before they had their own market. It is locally famous for its pancit Cabagan. Its people are called Ybanag. Nowadays, Ybanag are well educated and the source of the province's top politicians professionals and world class athletes.
During Christmas, the Cabagan Square Park could be seen flashing brightly with many Christmas lights and lanterns. Cabagan's top schools are Cabagan Science Elementary School and Isabela State University Science and Technology High School.
The Malasi lake is a sanctuary for migratory birds located in barangay San Antonio and has been hailed by the DENR. The biggest Gym in Isabela and in the whole region 2 is located in this town and the beautiful century-old Well that was build by the Spaniards, located at St. Ferdinand College, Cabagan Campus.
Alex Pagulayan, the 2004 world champion in billiards hails from San Juan, a remote barrio of Cabagan. Makati city Mayor Jejomar Binay's mother Is a Cabaguena.
According to the 2000 census, it has a population of 41,536 people in 7,250 households.
Cabagan is politically subdivided into 26 barangays.