Jefferson High School is a high school located in Edgewater, Colorado, United States.

It is operated by Jefferson County Public Schools.

In 1978, the Saints advanced to the final four in the Colorado State basketball tournament.

In 1980, the Saints Debate team advanced to the Colorado State Finals, after coming in second in the Jefferson County tournament.

The student body's demographics were: Using federal government guidelines, 87.6% of the students were eligible for free or reduced-price lunches.