North American Pygmy Hippo Population

Zoosiana in Louisiana is currently building an exhibit for pygmy hippos.

237 reactions · 30 shares | New Habitat Update! Big changes are happening to welcome a new petite powerhouse. Thats right - a PYGMY HIPPO will be coming to Zoosiana this fall! Follow along with us as we make over their new home! | Zoosiana

Also Dragonstone Ranch in Texas holds (1.2) pygmy hippos named Hagrid, Hedwig, and Hermione as well as (0.1.1) offspring named Luna (born on March 5th to Unknown x Hermione) and Buckbeak (born to Unknown x Hedwig).

8.9K views · 145 reactions | BIG NEWS❕We’ve added 3 Pygmy Hippos Hagrid, Hermione and Hedwig to our list of Dragonstone Ranch residents! ✨ Here’s a quick look at our journey through trainings, enclosure enrichment, and cuteness overload! #hippo #hippopotamus #zoo #wildlifephotography | Dragonstone Ranch | Dragonstone Ranch · Original audio
Dragonstone Ranch
10K views · 175 reactions | Exciting News Alert! Introducing the newest addition to our Dragonstone family: Buckbeak the baby pygmy hippo! We couldn't be more thrilled to welcome this adorable bundle of joy into our lives! ✨But wait, there's more! We're offering exclusive bookings for our one-of-a-kind Hippo Dip Adventure, where you can wade the waters with Mama Hippo Hedwig and baby Buckbeak! Don't miss out on this unforgettable experience at our upcoming Solar Eclipse Weekend! Tag your adventure buddies and let's make memories together! Visit our website: dragonstoneranch.com for more information! #BuckbeakAdventure #HippoDip #SolarEclipseFun #babyhippo #pygmyhippo | Dragonstone Ranch | Brent Bourgeois · Goin' My Way
 
0.1 Banana is leaving Brookfield Zoo for the AZA zoo with the largest pygmy Hippo herd in North America.
Brookfield Zoo Chicago

CCTU is not AZA-accredited. I'm not sure which AZA facility has the most pygmies, and most (if not all) of the holders of larger herds of Pygmy Hippos are non-AZA.
After evaluating most facilities it seems like majority that could indeed deemed 'large holders' are all non AZA as you say. All of the AZA holders only have handful, most of which being breeding pairs plus offspring, so it's difficult to determine as there isn't a standout facility.
 
I found this Washington Post article about Petunia's birth, which says Violet was moved a year after her birth "to another facility" - does anyone know where Violet was moved?
Not 100% sure but I suspect Violet's most likely location is the Center for the Conservation of Tropical Ungulates in Florida, due to their massive herd size. However, Metro Richmond isn't AZA, so there is a chance she could have moved to some other facility, but she appears to be out of the AZA, and CCTU is probably where she is now, unless she has since passed away.
 
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