Alfaro, Anguiano, Arnedo, Calahorra, Cervera, Ezcaray, Haro, Logroño, Nájera, Camero Nuevo, Santo Domingo de la Calzada, Camero Viejo

The Comarca de Arnedo, also known as Alto Cidacos, is located in Rioja Baja. It has a population of around 19,000 people spread across 477.18 square kilometers in thirteen different municipalities. Population in the comarca peaked around 1900 when it was 18,290 and has steadily dropped since, with the biggest drops occurring in the 1950s and 1960s.

Municipalities in the comarca include Arnedillo, Arnedo, Bergasa, Bergasillas Bajera, Enciso, Herce, Munilla, Muro de Aguas, Préjano, Quel, Santa Eulalia Bajera, Villarroya and Zarzosa.

Arnedillo, Arnedo, Bergasa, Bergasillas Bajera, Enciso, Herce, Munilla, Muro de Aguas, Préjano, Quel, Santa Eulalia Bajera, Villarroya, Zarzosa.