Sana'a (Arabic: صنعاءṢana'ā') is a governorate of Yemen. Its capital is Sana'a, which is also the national capital. However, the city of Sana'a is not part of the governorate. Instead, it forms the separate governorate of Amanat Al-Asemah. The governorate covers an area of 13,850 km². As of 2004, the population was 918,379 inhabitants, however an estimate put it at around 1,109,000 inhabitants in 2011.