Markham is an independent, non-profit, co-educational, bilingual, secular, day school of approximately 2,000 students aged 3–18.

Its students fulfil the Peruvian national curriculum as well as the IGCSE (International General Certificate of Secondary Education) programme from the University of Cambridge.

From as early as Nursery, Markham students throughout the school help in both national and international service projects.

The House competition has three major elements: the Swimming Gala, Markham on Stage, and Sports Day.

While these are the three most important competitions, during the year students compete regularly in academic, art and sports disciplines including: football, basketball, rugby, cricket, hockey, volleyball, softball, and minisports.

At IGCSE level, for courses at secondary three and four, Markham offers classes in Additional Mathematics, Art & Design, Business Studies, Computer Studies, Co-ordinated (double) Science, Design and Technology (three options), Drama, First Language English, Food and Nutrition, French, Geography, History, Information Technology, Literature in both English and Spanish, Mathematics, Music, Physical Education and First and Foreign Language Spanish.

At IB Diploma level, Further Mathematics, Biology, Chemistry, Computer Science, Design Technology, Economics, English A and B, Film Studies, French B, Geography, Global Politics, History, Mathematics, Music, Physics, Psychology, Spanish A and B, Theatre Arts and Visual Arts are currently all being taught at Higher Level.

These include several art courses, drama, music, sports such as football, hockey, cricket and rugby, and many other activities such as Model United Nations or debating.

Secondary 5 students who choose to follow the National Programme are entered for the Certificate of Advanced English (CAE).

Tradition plays an important part in Markham College, and is represented by the uniforms that the students wear.

In the summer months, a white polo shirt with beige shorts or skirts and sneakers is the norm.

The HELIX programme includes intercultural experiences which encourage the celebration and promotion of the student body's diversity and identity.