IS 239 Mark Twain School is located in Brooklyn, NY and is one of 16 middle schools in New York City Geographic District #21. It is a public school that serves 1330 students in grades 6-8. See IS 239 Mark Twain School's test results
to learn more about school performance.
In 2011, IS 239 Mark Twain School had 19 students for every full-time equivalent teacher. The New York average is 13 students per full-time equivalent teacher.