Milford is a borough in Pike County, Pennsylvania, United States, and the county seat. Its population was 1,021 at the 2010 census. It was founded in 1796 by Judge John Biddis, one of the state's first four circuit judges, who named the settlement after his ancestral home in Wales. Milford has a large number of historical significant buildings, some of which are separately landmarked by being listed on the National Register of Historic Places, while others fall into the NRHP's Milford Historic District. Of the 655 buildings in the district, 400 of them have been deemed to be historically significant. In addition, Grey Towers National Historic Site, the ancestral home of Gifford Pinchot, the noted conservationist, two-time Governor of Pennsylvania and first head of the U.S. Forest Service is located in Milford. Also nearby is "Arisbe", the home of logician, philosopher and scientist Charles S. Peirce.