Founded in 1926, Clairbourn School is a coeducational, private school that includes preschool, kindergarten, elementary, and middle school grades (JPK-8th). Located in San Gabriel, California, the school primarily serves families living in the Pasadena, San Marino, Arcadia areas, but also draws many families from La Cañada Flintridge, Monterey Park, Glendale, Alhambra, Altadena, South Pasadena, and other cities in the San Gabriel Valley. Clairbourn is a member of The Pasadena Area Independent Schools consortium.