Franklin Township is a township in Carbon County, Pennsylvania. It is part of Northeastern Pennsylvania. The population was 4,262 at the 2010 census. A portion of Beltzville State Park is in Franklin Township.

Beltzville State Park is a 2,972.39-acre (1,202.88 ha) Pennsylvania state park in Franklin and Towamensing townships, Carbon County, Pennsylvania in the United States. The park opened in 1972, and was developed around the U.S. Army Corps of Engineers flood control project Beltzville Dam on Pohopoco Creek. The village of Big Creek Valley was vacated in 1966 to make way for Beltzville Lake.