I think it should be mostly human? It is said most of human populations live in the shore of the metatic (exceptions being Firewind and Horse People because Hain hate sand and our gms are chauvinistic humanists)

That area was overall where mankind first arrived, and when the ocean rose even more humans flooded the region. All this while human and hair populations were said to be aggressive to each other. 

With all that mind I believe Hain pops would have been exterminated centuries past. But your island, your rules.