In 1947 Egilsstaðir was incorporated as a town and a rural jurisdiction Egilsstaðahreppur, with neighbouring jurisdictions Vallahreppur and Eiðahreppur joining the new jurisdiction.
On June 7, 1998 Egilsstaðabær was united with Vallahreppur, Skriðdalshreppur, Eiðahreppur and Hjaltastaðarhreppur under the name Austur-Hérað.