Nutrioso is an unincorporated community and census-designated place in Apache County, Arizona, United States. Nutrioso is located on U.S. Route 180 and U.S. Route 191 12 miles south-southeast of Eagar. Nutrioso has a post office with ZIP code 85932. As of the 2010 census, the population was 26.Nutrioso's name is derived from the Spanish word Nutria. The early Spanish colonists referred to beaver as "nutria", perhaps because the Eurasian beaver had been extinct in Spain since the 17th century. On August 2, 1776 Francisco Silvestre Vélez de Escalante wrote in his diary, "...we halted in a small plain on the bank of another arroyo which is called Rio de las Nutrias, because, although it is of permanent and running water, apparently during all or most of the year it stands in pools where they say beavers breed.