English language in southern England
South East England and the Home Counties (the counties bordering London) tend to reflect the interface between the London region and other regional accents. Affluent districts are associated with a modified Received Pronunciation (RP) accent, reflecting their traditional popularity with upper middle and upper-class residents which has spread throughout more social classes broadly in rural areas with commuting access to London. Less affluent areas have traditionally mainstream London accents (that is, variants of the Estuary English accent) that grade into southern rural outside urban areas.
East Midlands
The East Midlands colloquially use a distinctive form of spoken dialect and accent in some areas. It also has some history in the beginnings of Received Pronunciation and southern England accents. The above links expand on these in detail.