American Legion Post 405 supports many community organizations:
- Student Trooper Program — www.mass.gov
- Massachusetts Boys State — maboysstate.org
- Massachusetts Girls State — www.massgirlsstate.org
- Raynham Giants — www.raynhamgiants.com
- Raynham Soccer — www.raynhamsoccer.com
- Raynham Cub Scouts, Pack 11 — www.raynhamscouts.com
- Old Colony YMCA — www.oldcolonyymca.org