| RE: Umbanda|
There is this report in the Internet
where the author condemns all voodoo-like religious practices and says that there are 20,000 santero priests in the US, mainly in Miami, New York and New Jersey. The article has a lot of other numbers and is written in Spanish.
Good info here (in English), but numbers are not precise: http://www.batadrums.com/background/orishas.htm
"It is difficult to determine worldwide numbers of Santerians, as the religion is syncretistic, goes by different names (including Lukumi, and Camdomble in Brazil) and has been actively suppressed by the Communist government in the country where it is perhaps the largest: Cuba. Estimates of Santerians include 800,000 in the U.S. and one million in Brazil, plus 3 million in Cuba (although many Cuban practitioners identify themselves officially as Roman Catholics or Communists/atheists). A worldwide number of people who at least sometimes self-identify as adherents of this loosely-organized religious category might be 3 million, but this is just an estimate."