sentences:  The gmina covers an area of , and as of 2006 its total population is 6,602 (6,746 in 2013).Gmina Bircza is bordered by the gminas of Dubiecko, Dydnia, Dynów, Fredropol, Krasiczyn, Krzywcza, Nozdrzec, Olszanica, Sanok, Tyrawa Wołoska and Ustrzyki Dolne.Gmina Bircza contains the following villages