[9] The project was paid for with the proceeds of a $51.5 million bond issue approved in a 2005 referendum and included the addition and renovation of more than 160,000 square feet (15,000 m2) of space.

[13] The school was ranked 153rd in the nation and 13th in New Jersey on the list of "America's Best High Schools 2012" prepared by The Daily Beast / Newsweek, with rankings based primarily on graduation rate, matriculation rate for college and number of Advanced Placement / International Baccalaureate courses taken per student, with lesser factors based on average scores on the SAT / ACT, average AP/IB scores and the number of AP/IB courses available to students.

The ranking was calculated using one main factor that is the ratio of Advanced Placement, International Baccalaureate or Cambridge tests given at a school.

Recent accomplishments are:[22] The Livingston High School Lancers[3] compete in the Super Essex Conference, which is comprised of public and private high schools in Essex County and was established following a reorganization of sports leagues in Northern New Jersey by the New Jersey State Interscholastic Athletic Association.

[57] The 1972 boys soccer team finished the season with a 20-0 record after winning the Group IV title after defeating Brick Township High School by a score of 2-1 in the tournament final played at Fairleigh Dickinson University.

[60] In 2011, the Livingston boys' tennis team earned their second overall state title when they won the Tournament of Champions over Delbarton School, completing a perfect 36–0 season.

[63] The team won the 2018 Greater Newark Tournament title, defeating Nutley High School 8-3 in the finals.

[66] The boys' wrestling team won the North II Group IV state sectional championship in 2003[67] The girls volleyball team won the Group III state championship in 2004 (against runner-up Northern Valley Regional High School at Old Tappan) and won the Group IV title in 2011 (vs. Hunterdon Central Regional High School)[68] The football team won the 2008 North I, Group IV state sectional title, the program's first, with a 28–8 win over Hackensack High School in a game played at Giants Stadium.

The girls' soccer team won the North I Group IV state sectional championship in 2013 with a 1–0 win against Randolph High School in the tournament final.