Allingabro is a city in Djursland with 1,833 inhabitants placed 6 km northwest of Auning, 22 km east of Randers and forty one km west of the municipal seat Grenaa. The city belongs to the municipality of Norddjurs and is located in Central Denmark Region. Allingabrois turned into a municipal seat for Rougso Municipality in 1970-2006.
Allingabrois is positioned at Alling A 1½ km from its outlet in Grund Fjord, a shallow aspect department to Randers Fjord. The river's decrease run became part of the sound that through Djursland through Djursland from Grund Fjord via Kolindsund to Grenaa. Until the 1850s there was over Alling A a single ford, which the farmers from Rougso Herred could skip to get to Randers. 1 km to the north there has been any other ford over Hejbaek. But within the 1850s, stone bridges have been built over each forests and landscaped roads through the swampy terrain between them. Thus, the merchants from Randers who sailed at the fjord with a noticed saw an possibility to change with the Rougso farmers on the bridge within the inlet to Alling A.