The Makkah Region or Mecca Region ( ) is the most populous region (mintaqah) in Saudi Arabia. It is located in western Saudi Arabia and has an extended coastline. It has an area of 153,128 km² and a population of 6,915,006 (2010 census). Its capital is Mecca (also transliterated as Makkah), the holiest city in Islam, and its largest city is Jeddah, which is also Saudi Arabia's main port city.