Mill Hall is a borough in Clinton County, Pennsylvania, United States. The population was 1,613 at the 2010 census.HistoryThe Nathan Harvey House was listed on the National Register of Historic Places in 1985.GeographyMill Hall is located in southern Clinton County at, on both sides of Fishing Creek between its exit from a water gap through Bald Eagle Mountain to the south and its mouth at Bald Eagle Creek to the north.U.S. Route 220, a four-lane freeway, follows Fishing Creek through the Bald Eagle Mountain water gap and crosses the southeast corner of Mill Hall, with access from Exit 109. Pennsylvania Route 64 passes through the center of Mill Hall, also leading south through the water gap and ending to the north at Pennsylvania Route 150, which follows the northern boundary of the borough. Via PA 150 it is 3mi northeast to Lock Haven, the Clinton County seat. US 220 leads south 5mi to Interstate 80 Exit 178.According to the United States Census Bureau, Mill Hall has a total area of 2.45km2, of which 2.39sqkm is land and 0.07sqkm, or 2.80%, is water.
