St. John Vianney High School is a private coeducational Roman Catholic four-year high school, serving students in grades nine through twelve. The school is located on a 38-acre (150,000 m2) campus in Holmdel Township, in Monmouth County, New Jersey, and is operated under the supervision of the Roman Catholic Diocese of Trenton. The school is accredited by AdvancED. The school motto is "Knowledge – Commitment – Involvement". The St. John Vianney High School Lancers wear the school colors of Gold, White and Black.