Location in York County and the state of Pennsylvania. Coordinates: 39°43′48″N 76°27′03″W / 39.73000°N 76.45083°W / 39.73000; -76.45083Coordinates: 39°43′48″N 76°27′03″W / 39.73000°N 76.45083°W / 39.73000; -76.45083. Fawn Grove is a borough in York County, Pennsylvania, United States. The population was 452 at the 2010 census. It is served by the South Eastern School District which provides a public education.