Watchung Hills Regional High School is a regional public high school and school district serving students in portions of Somerset and Morris Counties in New Jersey, United States. The high school is located next to Woodland School, in Warren Township.Students from Warren Township and from the neighboring communities of Watchung, and Green Brook in Somerset County and Long Hill Township in Morris County attend the school.As of the 2009-10 school year, the district's one school had an enrollment of 2,107 students and 167 classroom teachers (on an FTE basis), for a student teacher ratio of 12.62.