Marlborough is a leading co-educational independent boarding school of Anglican Foundation, incorporated by Royal Charter and a registered educational charity. There are currently 1011 pupils of whom the majority are boarding pupils studying a range of subjects to A level and Pre-U. There are 140 teaching staff and over 400 non-teaching staff.

There are 16 boarding houses, substantial teaching and ancillary buildings. While each has its own distinctive culture and traditions, they share in a commitment to the promotion of the College's key values. Sport enjoys purpose-built facilities, with grass pitches for the field sports enjoying an extraordinary setting above the town. There are two floodlit all-weather astroturf pitches for hockey and tennis (12 courts) and further hard- court areas for netball (10 courts) and tennis (12 courts). An all-weather, porous rubber, athletics track, is fully equipped to international standards.

The College has an excellent sports hall complex and gymnasium. There are indoor cricket nets and facilities for a range of sports including indoor tennis, netball, basketball, volleyball and badminton. Indoor facilities also include 2 rackets courts, 5 squash courts and 6 fives courts.

A state of the art, 25 metre, competition, indoor swimming pool has 8 lanes and a hydraulic bottom which alters the depth from 0.8 to 3 metres making it equally ideal for squad training, water polo, sub aqua, canoeing or recreational swimming.