All-Girls Boarding Schools with the Smallest Average Class Size (2019-20)

Among "All-Girls Schools", view the boarding schools with the smallest average class sizes (2019-20).
Keep in mind that small statistical differences in average class sizes between schools do not always indicate better student performance at one school or another.
Also keep in mind that boarding schools in general have smaller average class sizes than public schools - even for schools with larger class sizes, a "large" class in a boarding school would still often be considered small by public school standards which often have class sizes of 20 students.

	Selectivity Lowest acceptance rates
	Student Test Scores Highest average SAT scores
	Student Test Scores Highest average SSAT score
	Affordability Least expensive tuition

	Affordability Highest percentage of students on financial aid

	Student Attention Smallest average class sizes
	Student Attention Lowest teacher:student ratio
	Faculty Education Highest percentage of faculty with advanced degrees
	Boarding Focus Highest percentage of boarding students
	Diversity Highest percentage of international students
	Diversity Highest percentage of students of color

	Community Size Largest student body (number of students)

	Community Size Smallest student body (number of students)
	School Resources Largest endowments
	School Resources Highest endowment per student
	Offering Breadth Most sports offered
	Offering Breadth Most extracurriculars offered
	Offering Breadth Most AP/advanced courses offered
	School History Oldest founding date

Smallest Average Class Size