Queanbeyan is a city and local government area (Queanbeyan City Council) in south eastern New South Wales, Australia. It is a city overshadowed somewhat by its proximity to the Australian federal capital city of Canberra: it has effectively become a de facto district of the nearby capital city as it lies on the Australian Capital Territory border and is approximately 10km from Canberra's CBD, Civic. The border itself is defined by a railway line. The Queanbeyan River runs through Queanbeyan, near the centre of the city. Queanbeyan has a population of 36,331 and has been said to be the "fastest growing city in southern NSW".