Bahrain (Arabic: ‏البحرين‎, al-Baḥrayn), officially the Kingdom of Bahrain (Arabic: مملكة البحرين‎, Mamlakat al-Baḥrayn), is a small island state near the western shores of the Persian Gulf. It is ruled by the Al Khalifa royal family. The population in 2010 stood at 1,214,705, including 235,108 non-nationals. Formerly an emirate, Bahrain was declared a kingdom in 2002.
Bahrain is an archipelago of 33 islands, the largest being Bahrain Island, at 55 km (34 mi) long by 18 km (11 mi) wide. Saudi Arabia lies to the west and is connected to Bahrain by the King Fahd Causeway. Qatar is to the southeast across the Gulf of Bahrain. The planned Qatar Bahrain Causeway will link Bahrain and Qatar and become the world's longest marine causeway.

(Source - en.wikipedia.org)