Locust Valley was a village located in the southeastern corner of Lehigh County, Pennsylvania, United States. The village is located at the southern end of Upper Saucon Township. It is part of the Lehigh Valley, which has a population of 861,899 and is the 68th most populous metropolitan area in the U.S. as of the 2020 census. The village developed around the crossroad of what today is Locust Valley Road and Blue Church Road South. This area is bordered by Springfield Township and Milford Township in Bucks County along with Lower Milford Township in Lehigh County.