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.
General American
Though General American accents are not commonly perceived as associated with any region, their sound system does have traceable regional origins: specifically, the English of the non-coastal Northeastern United States in the very early twentieth century. This includes western New England and the area to its immediate west, settled by members of the same dialect community: interior Pennsylvania, upstate New York, and the adjacent "Midwest" or Great Lakes region. However, since the early to middle twentieth century, deviance away from General American sounds started occurring, and may be ongoing, in the eastern Great Lakes region due to its Northern Cities Vowel Shift (NCVS) towards a unique Inland Northern accent (often now associated with the region's urban centers, like Chicago and Detroit) and in the western Great Lakes region towards a unique North Central accent (often associated with Minnesota, Wisconsin, and North Dakota).