The states are lucky to have quite a few although need to personally visit myself. But living in Southern California, you cannot go wrong with the LAIR at the Los Angeles Zoo. It doesn’t have the most species but has some rarities and endangered species. It’s split into two buildings: the main LAIR building consisting of forest and river dwelling reptiles with a few exceptions, the Desert LAIR building obviously focused on arid species. Lastly, they have Crocodile Creek consists of two massive tomistomas. Some star species: Gray’s Monitors, Tomistomas, Roti Island Snake Necked Turtle, Fly River Turtle, Armenian Viper, Rowley’s Palm Pit Viper, Mangshan Pit Viper, Santa Catalina Island Rattlesnake.
The St. Louis Zoo’s herpetarium is a very beautiful, large building constructed in 1927, and it has a great collection.
I might be partial but I love St. Louis's herpetarium. It has a sort of 'Shedd for reptiles' feel to it, and there are many species and rarities. Edit: to prove my point @The Cassowary responded with the same thing at the same time
I can’t speak on St Louis’ herpetarium which the zoo alone is very historic and regarded one of the best in the country. What I can say is the collection of reptiles and amphibians at the LAIR is a strong one despite not having more 60-70 species. It’s definitely a reason to visit the LA Zoo once quarantine is over and they allow indoor activities. If you are herpetology enthusiast, I’d say it’s a must stop.
I haven't been to many zoos, but from what I've seen, I'd have to say Zoo Atlanta's SSS is the best reptile house I've seen, especially compared to its older reptile building from years ago. The small building before the main represents Georgia native herps and fish, and the main building has a very nice variety of snakes, my favorite reptiles. Chattanooga Zoo's desert and rainforest buildings I'd say are in second, although they have small mammals in them such as fennec foxes and meerkats, but I guess since it's mainly reptiles and amphibians it counts, right?
Ueno's is very nice. It is sort of like a walkthrough rainforest exhibit except the reptiles are kept in tanks. There's also a beautiful tank for giant salamanders
IMO a rather underrated reptile house is the Cameron Park Zoo's Herpetarium (Waco, Texas, USA). I don't seem to recall it being the biggest but it was fairly nice and includes a fairly large and diverse collection. Here's a YT video I found which highlights the collection: Reptile House at Cameron Park Zoo in Waco Texas Please Subscribe - YouTube
Maybe you could ask a moderate to put this thread in the US portal? Just so there's no confusion in the future
I watched the video and I have to say, it looks quite nice. The MOLA at Fort Worth zoo also needs a mention