Low, as they are in every tiger reserve, and I would rather say so than sell you an expectation.
Sathyamangalam holds a meaningful tiger population and functions as a genuine breeding and dispersal corridor between Bandipur, Mudumalai and the eastern reserves. The animals are there. They are also solitary, largely nocturnal, and ranging across 1,400 square kilometres of dense forest.
Across three safaris, treat a sighting as good fortune rather than a plan.
Elephants are the reliable sighting here, and the population is one of the strongest in southern India. Gaur, spotted deer, sambar, peafowl and grey junglefowl are consistent. Dhole packs turn up reasonably often. Sloth bear and leopard are occasional, and four-horned antelope are a real possibility in the upper zones.
Come for a large, quiet forest with excellent elephants. Anything else is a bonus.