Brown galingale has always been rare in Britain, having only ever been recorded from 13 sites in England (6), including one introduced site in London (3). Most records are focused around the River Thames and the River Avon, with additional sites in Somerset, Dorset and the Weald (6). It has also been found in Jersey. This species has declined by around 50%; since 1990 it has been recorded from just 6 sites in England (6). It persists at sites in Somerset, south Hampshire, Buckinghamshire, Berkshire and Middlesex (6). Elsewhere, it occurs throughout most of Europe, as well as in Asia, North Africa, Madeira, Tenerife (3), Canada, and it is rare in the eastern USA (6).