Valdivia is a municipality located in Antioquia Department in northwestern Colombia. The town is situated in the Northern Antioquia subregion and had a population of 11,511 according to the 2018 census.
As a municipality in Antioquia, Valdivia is part of one of Colombia's most populous and economically significant departments. The Northern Antioquia subregion, where the municipality is located, encompasses several communities in the northern portion of the department.