The Independent School League or ISL is a prep school athletic conference located in the Washington, D.C. metropolitan area of the United States. It was founded in 1985. Although the ISL sponsors only girls' sports, not all fifteen ISL schools are "all-girls" schools.
The ISL sponsors ten sports: basketball, cross country, field hockey, lacrosse, soccer, softball, swimming & diving, tennis, track & field, and volleyball. Most of these competitions are divided into two divisions, with yearly promotion and relegation between the two divisions.
Member schools SchoolLocationColorsTeam nameEstablishedHigh School Enrollment (Girls)Student Body SourceBullis SchoolPotomac, MarylandBulldogs1930249Co-edConnelly School of the Holy ChildPotomac, MarylandTigers1961 267GirlsEpiscopal High SchoolAlexandria, VirginiaMaroon1839231Co-edFlint Hill SchoolOakton, VirginiaHuskies1956270Co-edGeorgetown Day SchoolWashington, D.C.Mighty Hoppers1945261Co-edGeorgetown Visitation Preparatory SchoolWashington, D.C.Cubs1799490GirlsHolton-Arms SchoolBethesda, MarylandPanthers1901345GirlsMadeira SchoolMcLean, VirginiaSnails1906320GirlsMaret SchoolWashington, D.C.Frogs1911157Co-edNational Cathedral SchoolWashington, D.C.Eagles1900300GirlsThe Potomac SchoolMcLean, VirginiaPanthers1904240Co-edSidwell Friends SchoolWashington, D.C.Quakers1883263Co-edSt. Andrew's Episcopal SchoolPotomac, MarylandLions1978170Co-edSt. Stephen's & St. Agnes SchoolAlexandria, VirginiaSaints1924233Co-edStone Ridge School of the Sacred HeartBethesda, MarylandGators1923379girls References