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Brunei, officially Brunei Darussalam, is a country in Southeast Asia, situated on the northern coast of the island of Borneo.
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Brunei · 1960–2025
Population data from World Bank (2025), licensed under CC BY 4.0. Series covers 1960–2025.
Bandar Seri Begawan (BSB) is the capital and largest city of Brunei. It is officially a municipal area with an area of 100.36 square kilometres (38.75 sq mi) and has a population of 72,133 as of 2025 estimate. It is part of Brunei–Muara District, the smallest yet most populous district which is home to over 70 percent of the country's population.
Kuala Belait (KB) or officially the Kuala Belait Town, is the administrative town of Belait District, Brunei. The population of the town proper was 4,544 in 2021. Kuala Belait is officially a municipal area, as well as a settlement under the mukim of the same name.
Seria or officially known as Seria Town, is a town in Belait District, Brunei. It is located about 65 kilometres (40 mi) west from the country's capital Bandar Seri Begawan. The total population was 3,625 in 2016. It was where oil was first struck in Brunei in 1929 and has since become a centre for the country's oil and gas industry.