Before a municipal merger in 1990, Yanuh-Jat was two villages: Yanuh and Jat. In 2003 the Israeli Government had an economical emergency plan in which Yanuh-Jat was merged with its surrounding neighbors: Julis, Abu Sinan and Yirka. The residents of those villages were against the merge and aimed to undo it. After one year, the merging was canceled and Yanuh-Jat was independent again. In origin, 70% of the citizens are from Yanuh and 30% are from Jat. Druze began arriving in Jat in the 17th century, while they arrived in Yanuh in the 18th century.