St. Nicholas Catholic School is accredited by the Western Catholic Educational Association (WCEA). The WCEA partners with three regional agencies (WASC, NAAS, NCA CASI) and two private agencies (CAIS and HAIS) to ensure that Catholic elementary and secondary schools are providing an exceptional academic education and Catholic faith formation. The WCEA accredits Catholic schools in nine western states, 26 Archdioceses, and the US Territory of Guam. Since 1957, the WCEA has successfully facilitated school improvements through the accreditation process.