The largest single local cluster is Mildenhall in Suffolk – the site of one of the largest US Air Force bases in the world, a legacy of the Cold War and Nato co-operation. Beyond that, London is home to many Americans, mostly workers in the City of London.
This population is anecdotally thought to be fairly mobile, coming for a few years or just perhaps a few months before departing again.
Some of the Americans showing in the figures will be older, ex-servicemen who returned after being based in Britain during World War II.
36% of US-born in Britain live in London – generally reflecting the strong financial and political ties between the capital and New York and Washington.
6 areas close to military bases saw steep declines in their US-born populations but six areas in London saw steep increases.