Dongara is a town 351 kilometres north-northwest of Perth, Western Australia on the Brand Highway. The town is located at the mouth of the Irwin River. The area is marketed as the 'Rock lobster capital of Australia'. Dongara is the seat of the Shire of Irwin. At the 2016 census the shire had a population of 3,569, with 2,782 residing in the contiguous towns of Dongara and Port Denison.