Pleasant Hill High School is a public school in Pleasant Hill, Oregon, United States, serving grades six through twelve. The school served grades nine through twelve until 2009, when the closed the district's elementary school because of declining enrollment and funding issues. The students were redistributed, K-5 going to the middle school buildings and 6-12 going to the high school buildings. The current high school building was constructed in 1961, and rebuilt in 2016.