A couple of months ago I read about the new (Harry Potter Universe) School of Ilvermorny which is located in north America. According to the Pottermore website, the kids there get sorted into four houses as well!
the following is JK Rowlings description of the school:
"The doors open onto a circular room topped by a glass cupola. A wooden balcony runs around the room one floor above. Otherwise the space is empty except for four enormous wooden carvings representing the houses: the Horned Serpent, the panther Wampus, the Thunderbird and the Pukwudgie."