rainfall year-round. Government Binjai city is divided into five districts (kecamatan), which are further divided into 37 villages (kelurahan). The mayoral office is located in the Town Hall, at General Sudirman Road No. 6. In 2009, Muhammad Idhaham, Msi was elected to this position for the period 2009–2014. Formerly, Binjai was the location for the headquarters of the Langkat Police Force, which had responsibility for policing both the city of Binjai and Kabupaten Langkat. However, in 2001 the police force was split, with the creation of a Binjai police force, while the headquarters for the Langkat Police Force moved to Stabat. Directly in front of the town hall is the Lapangan merdeka (Freedom Square), a civic open space, as well as the Pendopo Umar Baki, a building used for a variety of official and unofficial functions. Administrative districts The city of Binjai is divided into five administrative districts (Indonesian: kecamatan), tabulated below with their areas and their populations at the 2010 Census and the 2020 Census. The table also includes the number of administrative villages (rural desa and urban kelurahan) in each district and its post codes. Note: (a) mainly suburban districts of Langkat Regency, outside the city administrative region. Demographics Binjai is a multi-ethnic city, with Javanese, Batak, Chinese, Indian and Malay citizens. This complex ethnic mix gives Binjai a rich cultural and religious life. The total population for the city of Binjai was 279,302 at the 2020 Census. Along with Deli Serdang Regency, the city functions effectively as a suburb of Medan. The majority of the population are Islamic, mainly of Javanese and Malay origin. The largest mosque is located in Kapten Machmud Ismail Street. The Christian population is next largest, and is mainly made up of Sumatran Christians, while the majority of Buddhists are of Chinese origin. There is one Hindu temple in Binjai, located on Ahmad Yani Street, and the Hindu population are mainly made up of ethnic Indians. Economics and commerce The commercial centre is located in the heart of the city. The industrial area is in the north, while farming is concentrated in the east, south and west of the city, with the west being the main area for animal husbandry. There is a 3 km2 business park in the Kelurahan Cengkeh Turi. There is also oil and gas exploration occurring in the Tandam Hilir region, to the north of the city. In 1999,