Shrewsbury is a borough in York County, Pennsylvania, United States. The population was 3,823 at the 2010 census. At one time, the land that is now Shrewsbury Borough was part of one large area called Shrewsbury Township. In 1797, Baltzer (Balthaser) Faust began to develop the village by laying out lots on both sides of Joppa Road (later the York-Baltimore Turnpike and now Main Street). The early settlers were mostly German and the town was called Strassburg, which means “the town by the street or road.” By 1830 there was enough of an influx of English people to reinstate “Shrewsbury” as the official name.