The school's mission statement is "to send forth faith-filled, principled and knowledgeable young men and women by providing an exemplary college preparatory and an extra-curricular education, rooted in Roman Catholic tradition."

In addition, teachers post assignments and syllabi on the school's online portal, allowing parents to access the site from any computer.

In 1997, the girls' 4 × 100 metres relay team set the NFHS national high school record with a time of 44.70 while winning the CIF California State Meet.

[2][3] The record stood for seven years, until it was beaten by a team from Long Beach Polytechnic High School; it still ranks as the second-best performance in the event.

[3] That year, the girls' track team—led by Miesha Withers and sisters Malika and Miya Edmonson—finished half a point behind Long Beach Polytechnic for the overall state team title.

In the 2010–2011 season, both the boys' and girls' teams won the Southern California Regional Division V championship and were the State Runner-up of the Southern California State Championship under first time SBHS boys' coach, Reggie Morris Jr, and girls' coach, Bo Corona.

St. Bernard was the 2011 Del Rey League Football Champions Varsity and JV – 10-1 Record Seasons under first time, SBHS head coach Larry Muno.