Some are endangered

Several iguana species are vulnerable, endangered, or severely endangered, unlike the green iguana, which is common in both natural and imported settings. With an estimated 192 individuals and a range of little over nine square miles, the Galápagos pink land iguana is considered severely endangered. Rats and wild cats on the island are mostly to blame for the population decline. Due to the detrimental effects of increased tourists to the island as well as changes in the flora and fauna of its natural environment, the Exuma rock iguana, which lives in a popular tourist region of the Bahamas, is severely endangered.

Additionally, the Fiji crested iguana is a critically endangered member of the Fiji iguana family, which is an endangered species. Feral cats and the invading black rat are the main causes of the declining population of Fiji iguanas. Additionally, because of the sharp decline in their habitat of dry, healthy forests in the Fiji Islands, crested iguanas are now considered to be severely endangered. The clearing, burning, and conversion of forests to agricultural land are the causes of this habitat loss.

Several steps may be performed to increase iguanas' chances of survival depending on the locale. The pink land iguana is protected in Galápagos National Park, which it calls home. The Galápagos pink island iguanas' home, Volcán Wolf, is off-limits to tourists, and intensive efforts are being made to eliminate and manage invasive animal species there. The Bahamas' government actively works to prevent residents from moving iguanas from their native cays for use as tourist attractions and educates tourists about the endangered Exuma rock iguana by erecting signage describing the species on the island.