Chadds Ford Township is a township in Delaware County, Pennsylvania. It is located about southwest of Philadelphia. Prior to 1996, Chadds Ford Township was known as Birmingham Township; the name was changed to allow the township to correspond to both its census-designated place and to distinguish itself from the adjacent Birmingham Township in Chester County. As of the 2010 census, Chadds Ford Township had a population of 3,640, up from 3,170 at the 2000 census. - Source: Wikipedia