Columbine High School is a seconary school in unincorporated Jefferson County, Colorado. The school is located at 6201 South Pierce Street, one mile west of the Littleton city limits and half a mile south of the Denver city/county line. "Littleton" is indicated in the school's postal address because its ZIP code, 80123, is primarily associated with that city. However, the school is part of the Jefferson County Public Schools district and not the Littleton Public Schools system. The current principal is Dr. Frank DeAngelis.