Riverdale High School is the local educational institution of Riverdale where Archie and his friends attend grade 10. It is based on what was Haverhill High School in Haverhill, Massachusetts. The building still stands, although is now Haverhill's City Hall. Archie cartoonist Bob Montana attended Haverhill High from 1936–1939 and drew on his experiences there in drawing the comic.
Riverdale High's walls sport a blue and green color scheme, although the school colors are officially blue and gold. The school is one of the most common settings for Archie Comics stories. Frequently-seen locations on school grounds include its many classrooms, cafeteria, gymnasium, athletic field, chemistry lab, principal’s office, and the office of the school newspaper, The Blue and Gold.
Only a few of Riverdale High's staff appear regularly in the comics. These include school principal Mr. Weatherbee, homeroom teacher Miss Grundy, chemistry teacher Mr. Flutesnoot, history teacher Miss Haggly, physical education teachers Coach Kleats and Coach Clayton, cafeteria cook Miss Beazley, custodian Mr. Svenson, secretary Miss Phlips, and superintendent of schools Mr. Hassle. The rest of the faculty members have appeared for short periods or sporadically over the years, particularly in the 1970s, and late 1980s through early 1990s.