The Oklahoma City Zoo (OKC Zoo) is generally considered the "bigger" and more comprehensive facility compared to the Tulsa Zoo. Spanning approximately 119 to 130 acres, the OKC Zoo houses over 2,000 animals representing more than 500 species. It is famous for massive, immersive exhibits like "Expedition Africa" (the largest expansion in its history) and "Sanctuary Asia." In contrast, the Tulsa Zoo covers about 84 acres and cares for roughly 2,000 animals. While Tulsa is highly regarded—especially for its "Lost Kingdom" and "Mary K. Chapman Rhino Reserve"—OKC typically sees higher annual visitation (over 1.1 million) and offers a larger botanical garden integrated into the animal habitats. For visitors in 2026, OKC Zoo's continuous multi-million dollar expansions often make it feel like a more expansive, full-day experience, though both zoos are top-tier accredited members of the AZA.