Mortimer is in the local government district of West Berkshire and is seven miles south-west of Reading.

There is a surgery, dentist, pharmacy, a post office, Dads Shop (hardware), Co-Op supermarket, Morrisons convenience store, travel agent, Chinese take away, the Church of England parish church of St John the Evangelist.

There is also the St John's Hall, that houses the Mortimer Pre-School, holds amateur dramatic shows and is available for hire.

In 1915, Miss Capron had paid for land in St. John's Road and for the construction of a building there, called Garth Club, for young men, in memory of her nephew Nigel, killed in the Great War.

George Halliley Capron of Soouthwick Hall and Stoke Doyle, Northamptonshire, and settled in Mortimer with her unmarried sisters after her brother inherited the Southwick estates in 1909.

[6] The family were given the manor, along with Wigmore Castle by William I shortly after the Norman Conquest and held it throughout the Middle Ages,[6] as recorded in the Domesday Book.

Roger de Mortimer, 1st Earl of March was for three years de facto ruler of England after leading a successful rebellion against Edward II, before being overthrown and executed in 1330 by Edward III, with his lands (including Mortimer) seized by the Crown.