Like many Main Line communities, Radnor straddles Montgomery and Delaware Counties. The Delaware County portion is very affluent, and was developed prior to World War II. However, both the Montgomery County portion and the extreme southern portion (south of the train line), were developed much later. Radnor does not have a traditional developed town center, though there are a couple shops and restaurants immediately north of the train station on King of Prussia road. The nearby communities of Wayne, Bryn Mawr, and King of Prussia offer shopping and entertainment. Radnor is bounded to the west by Wayne, to the south by Villanova, to the east by Gladwyne, and to the northeast by Gulph Mills. The community is served by the Paoli/Thorndale Line of SEPTA Regional Rail, as well as Lancaster Avenue and Interstate 476. It is also not too far from Interstate 76, providing access to King of Prussia and Center City Philadelphia. Radnor has a humid continental climate with hot summers, bordering a humid subtropical climate. It is considerably cooler than Center City Philadelphia due to a relatively higher elevation and the urban heat island effect. Economy Radnor contains the largest commercial business district on the Main Line. Located immediately around the town's train station are several suburban office complexes. Among the companies based in Radnor are real estate company Brandywine Realty Trust, energy company Penn Virginia, insurer Lincoln National, wholesaler VWR, technology company Qlik, and financial company Mondrian Investment Partners. Radnor's town center around the Meetinghouse isn't well developed, but the nearby communities of Wayne and Bryn Mawr offer several shops and restaurants. Radnor is also easily accessible to King of Prussia. Education Public education in Radnor is administered by Radnor Township School District. Closest universities include Cabrini University, Eastern University, and Villanova University. In popular culture Radnor is identified in the script as the setting for Philip Barry's play The Philadelphia Story. Radnor is also the setting of Judy Blume's young adult novel, Blubber. Radnor High School was the model for Rydell High School in Grease; the director, Randal Kleiser, is a member of the Class of 1964. References Radnor Township, Delaware County, Pennsylvania Philadelphia Main Line Unincorporated communities in Delaware County, Pennsylvania Unincorporated communities in Pennsylvania