A single specimen was collected from a large wetland in Lewis County in 2006. It is unknown if this represents a breeding population or a stray individual, since this is primarily a coastal species. A single specimen was collected from four different coastal plain ponds in Suffolk County in 2008 (New York Natural Heritage Program 2009). It is unclear how many breeding populations may be present on Long Island. Additional survey efforts at historical, potential, and extant locations are warranted to better understand the status of this species in New York State.

There has been no estimate of population size for this species based on statewide occurrences. Recent sightings were confirmed in Lewis county (2006) and on Long Island (2008), while the species had not been confirmed in the state prior to the mid-1950s (New York Natural Heritage Program 2009). Prior to 1973, this species was confused in the literature with Common Baskettails, and any new location information on the Mantled Baskettail in New York may be reflective of heightened interest in surveying for this species and a spread of knowledge on how to separate this species rather than a population increase or a range expansion (Dunkle 2000, Holst 2005).

Recent observations of Mantled Baskettail have been made from 2006-2008 on Long Island and in Lewis County (New York Natural Heritage Program 2009). Two historical occurrences from Long Island are known from the mid-1950s. The distribution and size of populations have not been determined in New York, and long-term trends are unclear.