Rayong is a city (thesaban nakhon) located on the shore of the Gulf of Thailand

Gulf of Thailand

The Gulf of Thailand , also known in to Malays as Teluk Siam literally meant Gulf of Siam, is a shallow arm of the South China Sea.-Geography:...

, in the east coast region of Thailand

Thailand

Thailand , officially the Kingdom of Thailand , formerly known as Siam , is a country located at the centre of the Indochina peninsula and Southeast Asia. It is bordered to the north by Burma and Laos, to the east by Laos and Cambodia, to the south by the Gulf of Thailand and Malaysia, and to the...

. It is the capital of Rayong Province

Rayong Province

Rayong province is a province of Thailand. Neighboring provinces are Chon Buri and Chanthaburi. To the south is the Gulf of Thailand.-History:...

, and covers the tambon Tha Pradu and Pak Nam and parts of tambon Choeng Noen and Noen Phra, all within Mueang Rayong district

Amphoe Mueang Rayong

Mueang Rayong is the capital district of Rayong Province, eastern Thailand.-Geography:Neighboring districts are Ban Chang, Nikhom Phatthana, Ban Khai, Wang Chan and Klaeng...

. As of 2005 the population was 54,641.

Main industry is fishing, and it is the main producer of Thailand's fish sauce

Fish sauce

Fish sauce is a condiment that is derived from fish that have been allowed to ferment. It is an essential ingredient in many curries and sauces. Fish sauce is a staple ingredient in numerous cultures in Southeast Asia and the coastal regions of East Asia, and features heavily in Thai and Vietnamese...

. It is also a center for the chemicals and auto industries.