Bundaberg is a city in the Bundaberg Region, Wide Bay, Queensland, Australia, and is the tenth largest city in the state. It is a major centre of the Wide Bay–Burnett geographical region. The Bundaberg central business district is situated along the southern bank of the Burnett River, about 20 km from its mouth at Burnett Heads, and flows into the Coral Sea. The city is sited on a rich coastal plain, supporting one of the nation's most productive agricultural regions.