The Burmese python is now distributed across more than a thousand square miles of southern Florida, including all of Everglades National Park and areas to the north including Big Cypress National Preserve and Collier-Seminole State Forest. A number of Burmese pythons have been found in the Florida Keys, but there is not yet confirmation of a breeding population in the Keys. A population of boa constrictors has been established for many years in southern Miami, centered on a county park.
Researchers have recently confirmed the presence of a reproducing population of northern African pythons on the western boundary of Miami; this species is both visually and ecologically very similar to the Burmese python. There is as yet no evidence for wild and reproducing populations of the various anacondas or the reticulated python (the longest snake in the world), although representatives of both groups have been captured or sighted in the wild in Florida and elsewhere.