Pomar de Valdivia is a municipality in the province of Palencia, within the autonomous community of Castile and León, Spain. It is located in the northern part of the country, in a region characterised by a continental Mediterranean climate and a landscape of rolling plains and farmland typical of the Castilian meseta.
According to the 2004 census conducted by the Instituto Nacional de Estadística (INE), the municipality had a population of 531 inhabitants. This figure reflects the small, rural character of the community, which is consistent with many municipalities in the sparsely populated province of Palencia.
As a municipality, Pomar de Valdivia encompasses the main settlement and surrounding area, with local administration responsible for providing basic services to its residents. Its location in Castile and León places it within one of Spain's largest autonomous communities, though the province of Palencia itself is one of the less densely populated in the country.