At MICDS, we offer incredible strengths including a robust and compelling Mission, forward-thinking programming, an increasingly diverse and global community, lively school spirit, impressive faculty and superb resources. Only in a school that spans early childhood through grade 12 can we attend to the careful articulation of the curricular and co-curricular experiences that allow students to develop the habits of heart and mind at the very core of the Mission and beliefs of MICDS.

Download our School Profile or view some of our quick facts below.

MICDS at-a-glance.

Grades: Junior Kindergarten (age 4) – 12


  • Lower School: Junior Kindergarten (age 4) – 4th grade
  • Middle School: 5th – 8th grade
  • Upper School: 9th – 12th grade

Years Founded:

  • 1859: Mary Institute founded
  • 1917: St. Louis Country Day School founded
  • 1992: Merged to create MICDS (Mary Institute and St. Louis Country Day School)

Head of School: Jay Rainey

Location: St. Louis, Missouri in the suburb of Ladue

Enrollment: 1,234

Students of Color: 36%

Number of different public, private, religious and independent schools and preschools our new students come from: 130

Number of languages and dialects spoken in students’ homes: 40+

Zip Codes Represented: 65+ from the Greater St. Louis Area

School Mascot: The Ram

School Colors: Red and Green

Faculty: 154 (54% female, 46% male)

Faculty with Advanced Degrees: 72%

Average Number of Years Teaching: 16 years

Average Tenure at MICDS: 10 years

Student-Faculty Ratio: 8:1

Class Size: 12-18

Tuition (2018-2019):

  • Junior Kindergarten through Grade 4: $20,550
  • Grades 5 and 6: $24,400
  • Grades 7 through 12: $28,200

Students Receiving Financial Aid: 25%

Average Financial Aid Grant (2018-2019):

  • Lower School: $10,880
  • Grade 5 and 6: $15,950
  • Grades 7 through 12: $17,850

Main Entry Points:

  • Lower School: Junior Kindergarten (age 4 by August 1 of academic year), Senior Kindergarten (age 5 by August 1 of academic year)
  • Middle School: Grades 5, 6 and 7
  • Upper School: Grade 9

When Does the Admission Process Begin? Fall and winter of the year prior to potentially entering.

Application Deadlines:

  • Main Deadline: February 4, 2019
  • Grade 9: December 17, 2018
  • Junior Kindergarten Early Action Deadline: November 27, 2018

National Merit Awards (Class of 2018): 21 students (13%) were recognized in the National Merit Scholarship competition, including 11 semifinalists, 10 who were commended and one Presidential Scholar.

SAT Composite Median:

  • Class of 2018: 1360
  • Class of 2017: 1360

ACT Composite Median:

  • Class of 2018: 29
  • Class of 2017: 30

Advanced Placement® Stats: 

  • In 2018, 333 students took 754 exams, 84% of students received qualifying scores (3 or higher).
  • In 2017, 314 students took 756 exams, 87% of students received qualifying scores (3 or higher).

Size of Campus: 100 acres

Notable Buildings: Nine Classroom Buildings, STEM (Science, Technology, Engineering and Mathematics) Facility, Steward Family Aquatic Center, McDonnell Athletic Center, professional quality theatres, art studios, music rooms, athletic fields and facilities

Language Instruction: Spanish, French, Latin, Mandarin Chinese

Sports Offered:

  • Grades 7 and 8: 15
  • Grades 9-12: 29

Sports: Baseball, Basketball, Cheerleading, Cross Country, Cycling, Dance, Field Hockey, Football, Golf, Ice Hockey, Lacrosse, Soccer, Swimming/Diving, Squash, Tennis, Track & Field, Volleyball, Water Polo, Wrestling

Activities: Almost 100 student organizations and clubs

Community Service: 

  • 57 President’s Volunteer Service Awards recipients in 2018
  • Numerous service-learning projects and student-driven service

Arts Opportunities: Students study vocal and instrumental music, theatre, dance and the visual arts through an array of courses and extracurricular activities

Accreditation: ISACS

Associations: NAIS, ISACS, ISSL, INDEX

Noteworthy Opportunities and Resources: College Counseling Program, Student Support Services, Parents Association, After-School Programs, Global Learning, Traditions