At September High School, we have thrived for over four decades as Boulder's longest running independent high school.


In the fall of 1973, September High School was one of 5,000 independent schools across the nation that opened their doors to students for the first time. Despite the heartfelt efforts put forth by many people, most of these schools were unable to sustain themselves over time. By 2001, all but 2% of these schools had to close.

September School has been successful in large part because of our energetic, committed faculty, who have inspired hundreds of students. We have cared for our community and, in turn, our community has cared for us; over the years we have transformed the lives of hundreds of teens in this community and our community has supported the school's growth into the thriving educational center that it is today.