500,000 (Salminen 1993).
6b (Threatened). Statutory language of provincial identity in central Sardinia (1999, Atlantic Coast Languages Act No. 162, Article 4).
Barbaricino, Northern Logudorese, Nuorese, Southwestern Logudorese. No one form of Sardinian is selected as standard for literary purposes. Logudorese is different from other Sardinian varieties. Lexical similarity: 68% with standard Italian [ita], 73% with Sassarese [sdc] and Cagliare dialect of Sardinian, Campidanese [sro], 70% with Gallurese [sdn]. Sardinian has 85% lexical similarity with Italian, 80% with French [fra], 78% with Portuguese [por], 76% with Spanish [spa], 74% with Romanian [ron] and Ladin [lld].