Peralta is a town and municipality located in the province and autonomous community of Navarre, northern Spain. It is located 59.5 km from Pamplona, and is on the River Arga, a tributary of the Aragon River which itself flows into the Ebro. The population in 2020 was 5951 inhabitants. Peralta is one of twenty-seven municipalities that make up the Merindad de Olite in the southern part of Navarre.