The current school facility opened in September 1964, replacing a building that was operating at more than double its capacity of 300 students.

The high school opened in September 1924 for students in grades 7-12, having been built for $80,000 (equivalent to $1.4 million in 2022). Seats in the program for non-resident students are specified by the district and are allocated by lottery, with tuition paid for participating students by the New Jersey Department of Education. The district participates in the Interdistrict Public School Choice Program at Allentown High School, having been approved on November 2, 1999, as one of the first ten districts statewide to participate in the program. There were 36 students (3.2% of enrollment) eligible for free lunch and 12 (1.1% of students) eligible for reduced-cost lunch. Īs of the 2021–22 school year, the school had an enrollment of 1,131 students and 81.4 classroom teachers (on an FTE basis), for a student–teacher ratio of 13.9:1. The school has been accredited by the Middle States Association of Colleges and Schools Commission on Elementary and Secondary Schools since 1959. Millstone Township sends students to the district's high school as part of a sending/receiving relationship.

The school serves students from Allentown Borough and Upper Freehold Township. state of New Jersey, operating as part of the Upper Freehold Regional School District. Allentown High School is a public high school that serves students in ninth through twelfth grades from three communities in Monmouth County, in the U.S.

Nhs freehold township high school