The municipality of Cangas is administered by a mayor-council government, the Concello de Cangas, which meets in the Casa do Concello on Avenida Castelao.

After the local elections of 2015 the municipality is governed by a coalition of Cangas Left Alternative (coalition of United Left and the FPG), the Galician Nationalist Bloc and Assembly for Unity (ASpUN).

The municipality of Cangas is divided into six parishes: Each parish has its own religious festival which honours the patron saint of the parish and smaller, minor festivals dedicated to the patron saints of local chapels.

These celebrations both start and end with the firing of fireworks followed by a religious service.

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