Wagga Wagga is a major regional city in the Riverina region of New South Wales, Australia. Straddling the Murrumbidgee River, with an urban p…Wagga Wagga is a major regional city in the Riverina region of New South Wales, Australia. Straddling the Murrumbidgee River, with an urban population of more than 57,003 as of 2021, it is an important agricultural, military, and transport hub of Australia. The ninth largest inland city in Australia, Wagga Wagga is located 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.