Diamond BarHigh School

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Awards » Washington Post 2017

Washington Post 2017

Diamond Bar High School is among the most academically challenging schools in the nation, according to the annual rankings by the Washington Post.

Our school made the 2017 America’s Most Challenging High Schools, including more than 2,300 public high schools released on May 5, 2017.


Our school was ranked 57th in California and 483th in the United States.

“Diamond Bar High School has made a concerted effort to increase access to our Advanced Placement courses.  We are pleased to see that more students are successfully attempting these courses and that our efforts to establish equitable access to rigorous courses are being recognized by publications like the Washington Post.  We are very proud of our staff, students, parents, and community for their hard work and support,” said Principal Catherine Real.
“DBHS actually ranks 30th in the state if you remove all private schools from the list,” Real added. “Many of the remaining schools on the list have special admission screening processes.  The fact that Diamond Bar High School is an open enrollment school and still ranks among the best in the state and nation is extremely impressive!”
Since 1998, Washington Post columnist Jay Mathews has rated public high schools around the country the Challenge Index.
The index takes the total number of Advanced Placement, International Baccalaureate and Advanced International Certificate of Education tests given at the school that year and divides it by the number of seniors who graduated in May or June. 
Before posting the list, he also filters out magnet or charter high schools that have few average-performing students.