While "Singapore-born" includes a number of people who were born in Singapore as the children of American expats who now live in the US, as well as a number of people who gave up their citizenship, I suspect that this data is a relatively accurate proxy for where Singaporeans live in the U.S.
As the graph shows, not unsurprisingly, Singaporeans are concentrated on the East and West coasts, My analysis of the data show over 10,000 living within the Boston-New York-Philadelphia-Washington DC corridor, about 5000 living within 250 miles of L.A., and just under 5000 living within 250 miles of the Bay Area. The next highest concentrations are in Texas and then in Chicago/Ann Arbor.
(I've also done the methodology with the Malaysia-born, to show that this methodology works.)
So there you go - a good way of figuring out where there's a built-in market for someone who wants to start a Singaporean restaurant. Among other uses of the data, of course.
" would also want to live in...the Pacific North West for leisure!"
Het Jerry, I do like Seattle when I was there for a week for Business some 10 yrs ago, but living there in the long term may be different -- Washington State has a HIGH, if not HIGHEST SUicide Rate