Pulau Sembilan Postal Codes: 72181 | Kotabaru, Kalimantan Selatan

Key Facts

Pulau Sembilan is a small island group located in the Kotabaru Regency of South Kalimantan Province, Indonesia. Situated in the Java Sea off the southeastern coast of Kalimantan, this archipelago consists of nine main islands as its name suggests ('Sembilan' means 'nine' in Indonesian), though the exact number of islets and rocks varies with tidal conditions. The islands are positioned approximately 30 kilometers northeast of Kotabaru's mainland and serve as an important maritime landmark in the region. While precise population figures for Pulau Sembilan are not readily available due to its small size and likely seasonal habitation patterns, the islands cover an estimated area of less than 10 square kilometers collectively. The archipelago falls under the administrative jurisdiction of Kotabaru Regency and does not contain any further subdivided administrative regions, functioning as a single geographical unit within the regency's maritime territory. These islands are known for their pristine marine environments and are part of Indonesia's extensive archipelago system, characterized by rich biodiversity in surrounding coral reefs. For those seeking detailed location information, accessing postal code data for Pulau Sembilan and its surrounding maritime areas requires consultation with Kotabaru's regional administrative services.