Washington Preparatory School is recognized by the Washington State Board of Education as a private independent school.  

Washington Preparatory School is accredited by the following organizations:

  •  National Council for Private School Accreditation (NCPSA), July 1st, 2018 – June 30th, 2024

  • Accreditation International (AI), July 1st, 2018 – June 30th, 2024

  • International Baccalaureate Diploma Program Candidate (IB), March 26th, 2020
    IB Final Authorization Letter



We will be seeking accreditation/authorization from the following:

  • Cognia/AdvancED