Wagga Wagga (/ˈwɒɡəˈwɒɡə/ WOG-ə WOG-ə; informally called Wagga) is a city in New South Wales, Australia. Straddling the Murrumbidgee River, with an urban population of 55,364 people, Wagga Wagga is the state's largest inland city, and is an important agricultural, military, and transport hub of Australia. It is midway between the two largest cities in Australia, Sydney and Melbourne, and is the major regional centre for the Riverina and South West Slopes regions.