Kalimantan Timur Postal Codes: 75111 to 77381

Key Facts

Kalimantan Timur, commonly known as East Kalimantan, is a province located in the eastern part of Indonesian Borneo. Positioned on the island of Kalimantan, it occupies the northeastern section of the island, bordered by the Makassar Strait to the east and sharing land boundaries with several other Indonesian provinces. With an area of approximately 127,267 square kilometers, it ranks as one of Indonesia's largest provinces by land area. The province has a population of around 3.8 million people according to recent estimates, making it moderately populated given its vast territory. East Kalimantan is administratively divided into 10 regencies and 4 cities, with Samarinda serving as its provincial capital and Balikpapan as its major economic hub. The region is characterized by its rich natural resources, including extensive tropical rainforests, significant coal reserves, and substantial oil and natural gas deposits that have historically driven its economy. This province plays a crucial role in Indonesia's resource extraction sector while also containing important biodiversity hotspots. For those seeking detailed postal information, accessing postal codes for East Kalimantan's various municipalities and districts provides essential navigation and communication support throughout this expansive province.

Neighboring Regions

• Kalimantan Utara
• Kalimantan Tengah
• Kalimantan Selatan