This map, created by Denis Soria in 2012, shows the extent of the Asturian language in the Iberian Peninsula, with the percentage of speakers in each municipality.

Asturleonese is a Romance language, derived from Latin, spoken in the ancient kingdoms of Asturias and León. Its presence extends from north to south with three main dialectal blocks: Western, Central and Eastern. These variants extend across several Spanish provinces (Asturias, León, Zamora and Salamanca), as well as the Portuguese region around the municipality of Miranda de Duero.

The map shows different intensities of brown to refer to the percentage of speakers of the language in each territory. The highest values, with more than 30 % of the population, are concentrated in Asturias, the north of the province of León and the region of Miranda de Duero. It can also be seen how the percentage of speakers decreases towards the south and east, being completely non-existent in the eastern part of the provinces of León and Zamora, as well as in almost all of the province of Salamanca.

The legal status of Asturian in Spain has historically been one of nominal recognition without practical preservation policies. In Asturias, a law was passed in 1998 recognising Asturian as a traditional language, but not granting it official status. In Castilla y León, the region of which Zamora, León and Salamanca are part, there is no recognition at all. On the other hand, Miranda de Duero has had official recognition of Mirandese, the name given to the language in the region, since 1999.

Sources

• Map showing the extent of the Asturian-Lleonese language