Simeon – Where Did They Go?
In my post-Rehoboam/Jeroboam Legacy I wondered where the tribe of Simeon went too. While reading about the Meunites I followed a reference to 1 Chronicles 4:41 that states the men of Simeon attacked two places and took them over for their living areas: Gedor east of the valley and the hill country of Seir. The important thing here is it was done during the time of Hezekiah. 2 Kings 18:9 gives the time stamps where this could be possible and it was just before Shalmaneser of Assyria conquered Hoshea son of Elah king of Israel and took Israel to the Habor River.
Maybe not a complete answer but it does clarify the mystery of Simeon a little better.
Map from http://www.biblestudytools.com/resources/maps/twelve-tribes-of-israel-map.html and eBibleTeacher.com. and http://bibleatlas.org/full/habor_river.htm