Etna, Pennsylvania

Etna is a borough in Allegheny County, Pennsylvania, United States, located at the mouth of Pine Creek on the Allegheny River, directly across the river from Pittsburgh. It was incorporated in 1868 and named after the Sicilian volcano Mount Etna, an allusion to the blast furnaces, steel mills, galvanized-pipe works and other manufacturers there. Historically a blue-collar mill town, it was home to the Isabella Furnace of Carnegie Steel, built in 1872 and operated until 1953, and to the Etna Iron Works, established in 1894, which became Spang Chalfant and Company in 1910. After historic flooding from Hurricane Ivan in 2004, Etna began a reinvention focused on community resilience, with green streetscapes, Etna Riverfront Park and the Etna Center for Community, and in 2019 it became the world's first certified ecodistrict. The borough has a total area of about 2.1 square kilometres, all land, and borders Shaler Township and Sharpsburg. It is part of the Shaler Area School District. At the 2020 census it had a population of 3,437.