Doctor Arroyo is a municipality located in the Mexican state of Nuevo León. It has a territorial extension of 5,106.2 km². It was given this name in honor of José Francisco Arroyo de Anda. The town was founded on September 22,1826. Its population is 37,645 inhabitants. It received the category of city on December 31,1877. In 1915 for 45 days it enjoyed the status of being the seat of the powers of the nation, being constitutional president General Eulalio Gutiérrez.