Kufa, also spelled Kufah, is a city in Iraq, about 170 kilometres south of Baghdad, and 10 kilometres northeast of Najaf. It is located on the banks of the Euphrates River. The estimated population in 2003 was 110,000. Currently, Kufa and Najaf are joined into a single urban area that is mostly commonly known to the outside world as 'Najaf'. Along with Samarra, Karbala, Kadhimiya and Najaf, Kufa is one of five Iraqi cities that are of great importance to Shi'ite Muslims.