Hylians----They are still around, there descendants are all the human-like people on the Great Sea.

Gerudo----They survived the flood, and after that, not too long before TWW takes place they either died off or moved to another land.

Shiekah----Impa was the last during the times of OoT, they are most likely all dead.

Gorons----All of them either died, or the few that survived the flood moved to another land.

Zoras----They either by means of magic or evolution turned into the Rito. The Great Sea was too dangerous for them to live in so they either evolved to live on land and sky or were magically changed by Gods.

Kokiri----They are magical beings, able to take any form they want, after the flood they changed there forms into the Koroks for some unknown reason.