Dennis B. O Brien School is located in Dover, NJ and is one of 5 elementary schools in Rockaway Township School District. It is a public school that serves 254 students in grades K-5. See Dennis B. O Brien School's test results
to learn more about school performance.
In 2011, Dennis B. O Brien School had 12 students for every full-time equivalent teacher. The New Jersey average is 13 students per full-time equivalent teacher.