Estimates suggest there are only about 200 white tigers left in the world. White tigers are not a species separate from other tiger species, but are, instead, genetic anomalies.
Since a total of only 5000 to 7000 tigers exist in the wild, and the natural occurrence of white tigers is one per 10000, there may be no wild white tigers left. To conserve white tigers in captivity requires inbreeding which is ethically questionable and often produces offspring with genetic defects. In fact, all white tigers living in captivity likely came from the same tiger, Mohan, captured in Rewa, India in 1951.