Castrillo de Onielo is a municipality of Palencia province. It has a population of 108 people.
International buyers make up 5.3% of the property market and the population of Castrillo de Onielo has fallen by 11 (9%) since 2011.
Market activity in Palencia province is currently 44% below its peak in 2007. There were 451 property transactions registered in Q1 2023.
Average monthly temperatures in Castrillo de Onielo (°C)