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Geography

Surabaya the capital of East Java province, extends over 350.56 km (135.35 sq mi), its metropolitan area covers 6,310.06 km (2,436.33 sq mi), which includes the satellite cities of Mojokerto, Gresik, Sidoarjo, Bangkalan, and Lamongan, and has an estimated population of 9.96 million as of 2023, making it the Second largest urban area in Indonesia and the Top 50 largest in the world. Surabaya ranks 11th among the Indonesian city in the human development index. Surabaya's offer business and employment opportunities, along with its ability to offer a potentially higher standard of living compared to other parts of the country, have attracted migrants from across the Indonesian archipelago, making it a melting pot of numerous cultures.

The city is referred to as Kota Pahlawan (the city of heroes) due to the significance of the Battle of Surabaya during the Indonesian National Revolution. The city is one of the important financial, commercial, industrial, transportation, and entertainment hubs of the archipelago. Arguably the second most significant city after Jakarta, the city is also home to Indonesia's second-busiest seaport, the Port of Tanjung Perak, which is located in northern Surabaya. The city is also known for being one of the cleanest and greenest in Indonesia.