Cornwell Avenue Elementary School 250 Cornwell Ave, West Hempstead, NY11552 Cornwell Avenue Elementary School is a public school in the West Hempstead Union Free School District. It was founded in…More 1956, the same year as West Hempstead Middle School. About 360 students in first through fifth grade are educated here. Students get a preview of some clubs and activities that will be available to them in student newsletter. Several interesting and enjoyable events are open to students, their families and the rest of the community throughout the year, including the annual Fall Festival.