The school was the 295th-ranked public high school in New Jersey out of 339 schools statewide in New Jersey Monthly magazine's September 2014 cover story on the state's "Top Public High Schools", using a new ranking methodology. The school had been ranked 301st in the state of 328 schools in 2012, after being ranked 281st in 2010 out of 322 schools listed. The magazine ranked the school 298th in 2008 out of 316 schools. The school was the 266th-ranked publichigh school in New Jersey out of 316 schools statewide, in New Jersey Monthly magazine's September 2006 cover story on the state's Top Public High Schools.
Athletics
The Riverside High School Rams compete in the Burlington County Scholastic League, which consists of nineteen public and non-public high schools covering Burlington County, Mercer County and Ocean County in Central Jersey, operating under the jurisdiction of the New Jersey State Interscholastic Athletic Association. With 329 students in grades 10-12, the school was classified by the NJSIAA for the 2015-16 school year as South Jersey, Group I for most athletic competition purposes, which included schools with an enrollment of 78 to 478 students in that grade range. The football team competes in the Freedom Division of the 95-team West Jersey Football League superconference and was classified by the NJSIAA as Central Jersey Group I for football for 2017-18. The school mascot is Rocky the Ram and the colors are maroon and white. Up until 1976, students from Delran Township - which partly encircles Riverside - had attended the school. Because of its large high school student population at that time, the school competed in Group III sports programs and was highly competitive with other large schools. Outside of its annual Thanksgiving Day game against Florence Township Memorial High School, the Rams also had ongoing rivalries with nearby Holy Cross High School, Cinnaminson High School and Rancocas Valley Regional High School in Mount Holly. Since Delran Township established its own high school and the high school grade population dropped at Riverside, the school mostly competes in Group I and some of those rivalries have ended. The boys' basketball team won the Group I title in 1954 vs. Park Ridge High School, and won the Group II state championship in 1959, defeating North Arlington High School in the tournament final. The boys' soccer team won the Group I state championship in 1961, 1976, 1979, 1980, 1982 and 1985 ; the girls' soccer team defeated Butler High School to win the 2005 Group I state championship. The boys' baseball team won the Group I state championships in 1996 vs. Whippany Park High School and in 1997 vs. Glen Rock High School.