Board Thread:Lore Discussion/@comment-101.174.54.47-20130226060747/@comment-69.123.217.197-20150216210217

Lore actually suggests that most Mer live for several hundred years on average. There are cases of individuals living into their thousands, but magical ability is known to extend the lifespan of a master mage regardless of his or her race: a skilled human mage, for example, can also live for as long or longer depending on mastery. Orcs live short lives compared to other elves, so I would guess that their life spans are closer to humans', and Dunmer also live comparably, though I don't believe significantly, shorter lives on average as well.