The Tyre Union was established by Decree No. 9761 on March 11, 2003. It is subject to decree No. 5595/82 and was comprised initially of 20 municipalities. The number of member municipalities has since increased to reach 55 municipalities in 2021. H owever, Zalloutiyeh, Selaa, Chehabiyeh, Jouaiyya, Bafliyeh, Nafakheyye, Bestayat, Wadi Jilo and Debaal municipalities are located within the Tyre district but are not part of the Union. The Union is located in the Tyre District within the South Lebanon governorate.