Isan, also written as Isaan, Isarn, Issan, or Esarn; (Isan/Thai: อีสาน) is the northeast region of Thailand. It is located on the Khorat Plateau, bordered by the Mekong River to the north and east, and by Cambodia to the south. To the west it is separated from Northern and Central Thailand by the Phetchabun mountain range.
Agriculture is the main economic activity, but due to the socio-economic conditions and hot, dry climate output lags behind that of other parts of the country. This is Thailand's poorest region.
The main language of the region is Isan (which is similar to Lao), but Thai is also spoken by almost everyone. Khmer (the language of Cambodia) is widely spoken in regions near the Cambodian border. Most of the population is of Lao origin, but the region's incorporation into the modern Thai state has been largely successful.
Prominent aspects of the Culture of Isan include mor lam (Thai: หมอลำ) folk music, Muay Thai boxing, cock fighting and Isan food, in which sticky rice (Thai: ข้าวเหนียว) and chillies are prominent. Sticky rice is a staple of Thai Northeastern cuisine, and accompanies almost every meal.
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