Coat of arms the East Java province, Indonesia

East Java (Indonesian: Jawa Timur, Javanese: ꦙꦮꦶꦮꦺꦠꦤ꧀, romanised: Jawa Wétan, Madurese: Jhâbâ Tèmor) is a province of Indonesia located in the easternmost third of Java island. 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 by around 2.29 kilometres (1.42 mi). Located in eastern Java, the province 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 and other smaller island groups located further east (in the northern Bali Sea) and the Masalembu archipelago to the north. Its capital is Surabaya, the second largest city in Indonesia, a major industrial centre and also a major business centre. Banyuwangi is the largest regency in East Java and the largest on the island of Java. The province covers a land area of 48,036.84 square kilometres (18,547.13 sq mi), and according to the 2010 Census, there were 37,476,757 people residing there, making it Indonesia's second-most-populous province; the 2020 Census showed an increase to 40,665,696 people, while the official estimate for mid 2024 was 41,914,499 (comprising 20,848,660 males and 20,965,880 females). Almost a quarter of the population lives inside the Greater Surabaya metropolitan area. East Java is inhabited by many different ethnic groups, such as the Javanese, Madurese and Chinese. Most of the people in East Java adhere to Islam, forming around 94% of the total population. Other religions are also practiced, such as Christianity, Buddhism and Confucianism which are mostly practised by Tionghoa people and immigrants from Eastern Indonesia and North Sumatra, and also Hinduism which are practised by the Tenggerese people in the Bromo Tengger Semeru National Park and the Balinese people inhabiting the easternmost part of the province bordering Bali as well as the dominant minority Indian Indonesians in Surabaya city. The Indonesian language is the official language of the province as well as the whole nation, but Javanese and Madurese are most frequently used, especially the Surabaya dialect (Javanese: Suroboyoan or Surabayaan — the Javanese dialect of Surabaya) used mainly in the capital Surabaya. Indonesian is only used for inter-ethnic communication and official purposes. East Java offers different types of tourist attractions. There are a variety of natural attractions, including mountains, beaches, caves, and waterfalls. Almost every regency or city in East Java has its own unique tourist destinations, such as the Ijen volcano in Banyuwangi, Baluran National Park in Situbondo, and Bromo Tengger Semeru National Park in Malang, Pasuruan, Lumajang, and Probolinggo.