It has a very large agricultural program that, with its computer science classes, attracts students from neighboring communities, especially Columbia and Hampton.

[citation needed] Lyman Memorial was originally built on the Lebanon Green (at the site where the Lebanon Town Hall now sits) and was funded by a generous donation from the Lyman family.

[citation needed] The original Lyman building burned down, and the school was re-built on Route 207.

[citation needed] Other athletic programs include basketball, indoor track, wrestling, baseball, softball, volleyball, track and field, tennis, a co-op ice hockey team with Bolton High School, Rockville High School, and Coventry High School, and a co-op football team with Coventry, Windham Tech, and Bolton which went 10–0 in 2017 and won the Pequot League Championship.

[citation needed] Lyman Memorial High School is accredited by the New England Association of Schools and Colleges, Inc., a nongovernmental, nationally recognized organization whose affiliated institutions include elementary schools through collegiate institutions offering post-graduate instruction.