Renovo is a borough in Clinton County, Pennsylvania, 28 miles (45 km) northwest of Lock Haven. Deposits of bituminous coal and fire clay are in the region. In 1900, 4,082 people lived there, and in 1910, 4,621 lived there. In the 2000 census, the borough population was 1,318. The borough is located along Pennsylvania's Bucktail State Park Natural Area, also known as Pennsylvania Route 120, which winds through the surrounding mountains following the West Branch Susquehanna River.