St. Helena Montessori was founded in 1981 by Mrs. Elena Heil and Mrs. Olga McAdam, who taught the first Montessori Primary Class. In 1985, the school expanded to include a Montessori Elementary Class. In 1989, it was incorporated as a 501(c)(3) public benefit corporation and a Board of Directors became the governing body of the school. In 2008, an Adolescent Program / Farm School was added. The Adolescent Program maintains a farm on the school’s 20-acre parcel on the east side of St. Helena, which became the permanent home to the entire school in the fall of 2013. In November of 2016, our school launched a Toddler Option for children as young as 18 months.

St. Helena Montessori offers four levels of Montessori education: a four-day-per-week Toddler program for children between 18 months and 3 years, a five-day-per-week Primary program for children from the age of 2 ½ years through 6 years, an Elementary program for 6 through 12 years, and an Adolescent / Farm School for 12- to 15-year-old students.