All My Children is set in Pennsylvania.
All My Children . Created by Agnes Nixon , All My Children is set in Pine Valley , Pennsylvania , a fictional suburb of Philadelphia , which is modeled on the actual Philadelphia suburb of Rosemont . Philadelphia ( [ ˌfɪləˈdɛlfi.ə ] ) is the largest city in the Commonwealth of Pennsylvania and the sixth-most populous city in the United States , with an estimated population of 1,567,872 and more than 6 million in the seventh-largest metropolitan statistical area , .