The Pieniny mountain chain is divided into three ranges: Pieniny Spiskie, Małe Pieniny, and the Pieniny Właściwe range where the Park is located. The Park's area is , of which 13.11 km² is forested. One-third (7.5 km²) is strictly protected. On the Slovak side of the mountains there is a parallel park called the Pieninský národný park.