伊萨尔科是萨尔瓦多的城镇，位于该国西部，由松索纳特省负责管辖，面积175.90平方公里，海拔高度389米，2007年人口70,959，人口密度每平方公里403.41人。

Izalco (in Nawat: Itzalku) is a municipality in the Sonsonate department of El Salvador. Volcan Izalco is an icon of the country of El Salvador, a very young Volcano on the flank of Santa Ana volcano. From when it was born in 1770 until 1966, it was in almost continuous eruption and was known as the "lighthouse of the Pacific." Since then it has been nearly inactive.