San Quintin is a 5th class municipality in the province of Abra. It is located just down the Abra River, it borders the Ilocos Sur region and expectedly has many locals speaking in Ilocano.

According to the 2000 census, it has a population of 5,130 people in 946 households.

San Quintin is politically subdivided into 6 barangays.

The place climate is characterized by 2 distinct seasons. The dry season, which occurs from November to April, is marked by daily blue skies and clear starry nights and the wet season for the rest of the year with high rainfall intensities accompanied by storms and typhoons.