East Java is a province of Indonesia. It has a land border only with the province of Central Java to the west; the Java Sea and the Indian Ocean border its northern and southern coasts, respectively, while the narrow Bali Strait to the east separates Java from Bali. Located in eastern Java, it also includes the island of Madura, which is connected to Java by the longest bridge in Indonesia, the Suramadu Bridge, as well as the Kangean islands located further east and Masalembu archipelagos in the north. Its capital is Surabaya, the second largest city in Indonesia, a major industrial center and also a major business center. Banyuwangi is the largest regency in East Java and the largest on the island of Java.
The province covers an area of 47,800 km², According to the 2010 Census, there were 37,476,757 people residing in the East Java, making it Indonesia's second-most-populous province; the latest official estimate is 39,744,800. East Java is inhabited by many different ethnic groups, such as the Javanese, Madurese and Chinese. Most of the people in East Java adheres to Islam, forming around 94% of the total population.