Not really; Barovian, as I posted, is essentially a human place. There are tiny non-human communities (the elves of Dengamwy and in some other forests, the dwarves of Dvegheneim) but other than that, not much.
Halflings can hail from about anywhere in the Core so you could have a halfling family in Vallaki or elsewhere. They are generally more tolerated than other races.
Ravenloft in general is also very human-centric; Darkon is the domain with the widest variety of races, but other than that most domains tend to be made of 98%+ humans, except Sithicus which is pretty much all elves.