Twin cities
In Australia, the term is used to refer to cities or towns that are close to each other but are on other sides of a state border or a river. Some examples include the Gold Coast-Tweed Heads area (the Gold Coast is in Queensland while Tweed Heads is in New South Wales) and the Albury-Wodonga area (Albury is in New South Wales while Wodonga is in Victoria; these cities are also separated by the Murray River).