He belonged to the kingdom of Israel. "His Israelitish origin is attested by the peculiar, rough, Aramaizing diction, pointing to the northern part of Palestine; by the intimate acquaintance he evinces with the localities of Ephraim (5:1; 6:8, 9; 12:12; 14:6, etc.); by passages like 1:2, where the kingdom is styled 'the land', and 7:5, where the Israelitish king is designated as 'our' king."
The period of his ministry (extending to some sixty years) is indicated in the superscription (Hos. 1:1, 2). He is the only prophet of Israel who has left any written prophecy.
Initial text from Easton's Bible Dictionary, 1897 -- Please update as needed