This article contains Lanna text. Without proper rendering support, you may see question marks, boxes, or other symbols instead of Tai Tham script. Chiang Rai (Thai: เชียงราย, pronounced [tɕʰīəŋ.rāːj]; Northern Thai: ᨩ᩠ᨿᨦᩁᩣ᩠ᨿ, เจียงฮาย, Northern Thai pronunciation: [t͡ɕīəŋ.hāːj]) is the northernmost major city in Thailand, with a population of about 200,000 people. It is located in Mueang Chiang Rai District, Chiang Rai Province. Chiang Rai was established as a capital city in the reign of King Mangrai, in 1262 CE.