Angostura Municipality is a municipality in the Mexican state of Sinaloa in northwestern Mexico. Its seat is the city of Angostura.

It stands at .

According to 2010 census, it had a population of 44,993 inhabitants.

Political subdivision Angostura Municipality is subdivided in 7 sindicaturas: La Ilama Colonia Agrícola México Gato de Lara Alhuey Campo Plata La Reforma La Colonia Agrícola Independencia

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