Cochranville is a census-designated place in West Fallowfield Township, Chester County, Pennsylvania, United States. The population was 668 at the 2010 census. It is the hometown of Olympic swimmer Cierra Runge.Cochranville is located at 39°53′30″N 75°55′17″W / 39.89167°N 75.92139°W / 39.89167; -75.92139 adjacent to the eastern border of West Fallowfield Township. Pennsylvania Routes 10 and 41 intersect in Cochranville, Route 10 heading north to Parkesburg and southwest to Oxford, while Route 41 heads northwest to Atglen and Gap and southeast to Avondale.According to the United States Census Bureau, the CDP has a total area of 1.1 square miles, all of it land.