Coaldale is a borough in Schuylkill County, Pennsylvania, United States. Initially settled in 1827, it was incorporated in 1906 from part of the former Rahn Township; it is named for the coal industry—wherein, it was one of the principal early mining centers. Coaldale is in the southern Anthracite Coal region in the Panther Creek Valley, a tributary of the Little Schuylkill River, along which U.S. Route 209 was eventually built between the steep climb up Pisgah Mountain from Nesquehoning and its outlet in Tamaqua, approximately five miles to the west.