Pylesville is an unincorporated community in Harford County, in the Baltimore metro area of the state of Maryland in the United States. Governed at the county level, the area has a population of around 2000. Until 1958, this community was served by the Maryland and Pennsylvania Railroad at milepost 40.3. The Harford County Public School System extends into Pylesville. Students in the area attend the Tri-school community of North Harford Elementary, High, and Middle schools, along with students form Jarrettsville, Forest Hill, Bel Air, Darlington, Whiteford, Street/Pylesville, Highland, and Norrisville.