Perry Hall is an unincorporated community and census-designated place in Baltimore County, Maryland, United States. The population was 28,474 at the 2010 census.GeographyPerry Hall is located at.According to the United States Census Bureau, the CDP has a total area of 7.0sqmi, all of it land.EducationElementary schools Perry Hall Elementary Gunpowder Elementary Seven Oaks Elementary Joppa View Elementary Chapel Hill Elementary Perry Hall Christian SchoolMiddle schools Perry Hall Christian School Perry Hall MiddlePerry Hall Middle School is the largest middle school in Baltimore County. Current enrollment is 1851 students. The state rated school capacity is 1643. Enrollment projections released by Baltimore County Public Schools on Feb 20, 2017 indicate Perry Hall Middle School will have 2075 students in the 2018-19 school year. As of Feb 25, 2017 The Baltimore County Board of Education has not released any information on a plan to alleviate the over capacity situation. http://www.bcps.org/schools/profile.aspx?OrgID=103, https://www.boarddocs.com/mabe/bcps/Board.nsf/files/AJDM3R56FD9D/$file/SC2016%20FINAL%20020217.pdf