

In the BBC Miss Marple television adaptations the Hampshire village of Nether Wallop was used as the setting for St Mary Mead. It has been suggested that Market Basing is Basingstoke and Danemouth is Bournemouth.

The neighbourhood of St Mary Mead is served by trains arriving at Paddington railway station, indicating a location west or south-west of London. Other towns said to be close by include Brackhampton, Medenham Wells, and Milchester. This is inconsistent though with the references to the proximity of the coast as the coast is at least 25 miles from this area. Using the distances from Alton and London gives a narrow possible location of a Vesica Piscis bounded by Winkfield, Bagshot, Peaslake, East Horsley, Byfleet and Windsor Great Park. It is just outside the town of Much Benham and is close to Market Basing (which appears as a name of a town in many of Agatha Christie's novels and short stories), 12 miles (19 kilometres) from the fashionable seaside resort of Danemouth, and also 12 miles (19 kilometres) from the coastal town of Loomouth. Once it has been fully established as Miss Marple's home village, St Mary Mead is supposed to be in South East England, 25 miles (40 kilometres) from London and 25 miles from Alton.

Her telephone number is "three five" on a manual exchange. Miss Marple lives in Danemead Cottage, the last cottage in Old Pasture Lane. The St Mary Mead of Katherine Grey is in Kent. In the BBC Miss Marple TV adaptation of Nemesis, a letter from Mr Rafiel's solicitors indicate that St Mary Mead is located in the (also fictional) county of Middleshire. Miss Marple's St Mary Mead is described in The Murder at the Vicarage as being in the fictional county of Downshire, but in the later novel The Body in the Library Downshire has become Radfordshire. The village was first mentioned in a Miss Marple book in 1930, when it was the setting for the first Marple novel, The Murder at the Vicarage. In that novel, St Mary Mead is home to the book's protagonist Katherine Grey. However, Christie first described a village of that name prior to Marple's introduction, in the 1928 Hercule Poirot novel The Mystery of the Blue Train. The quaint, sleepy village was home to the renowned detective spinster Miss Marple.

St Mary Mead is a fictional village created by popular crime fiction author Dame Agatha Christie. The house on the left features as the home of Miss Jane Marple (as played by Joan Hickson) in St Mary Mead.
