As of September 2021, SeaWorld Parks & Entertainment reported approximately 3,500 animals across its marine parks (San Diego, Orlando, San Antonio) and Busch Gardens parks.
The collection includes cetaceans (orcas, dolphins, belugas), pinnipeds (sea lions, seals, walruses), penguins, sea turtles, fish, sharks, rays, and terrestrial species at Busch Gardens.
For current numbers, check SeaWorld's official site or contact their communications team—inventory changes with births, rescues, transfers, and deaths.