The College of Westchester was founded in 1915 in New Rochelle, New York, as Westchester Commercial School. Its original focus was on business and secretarial studies, offering both day and evening classes. The school expanded in 1959, and moved to White Plains, New York.
In 1973, it changed its name to Westchester Business School (WBI) and earned its first formal accreditation. In 1975, the New York State Board of Regents authorized WBI to offer the Associate in Occupational Studies (AOS) Degree.
In 2003, the college changed its name to The College of Westchester and was also granted accreditation by Middle States Commission on Higher Education, a regional accreditor, that same year.[4] In 2008, it offered its first bachelor's degrees, and by 2023, it offered bachelors and associate degrees, and certificates, in business, health professions, and information technology.