6,100,000 in Azerbaijan (2007 census). Population total all countries: 7,313,660. 4,000,000 monolinguals. Ethnic population: 6,230,000. L2 users: 8,000,000 in Azerbaijan.
1 (National). Statutory national language (1995, Constitution, Article 21(1)).
Airym, Baku, Borcala, Derbend, Ganja, Karapapak, Lenkaran, Nakhchivan, Nukha, Ordubad, Qabala, Qazakh, Quba, Qyzylbash, Salyan, Shamakhi, Shusha (Karabakh), Terekeme, Yerevan, Zaqatala (Mugaly). Slight dialect differences. Qazakh dialect is not related to Kazakh [kaz]. Significant differences from South Azerbaijani [azb] in phonology, lexicon, morphology, syntax, and loanwords. A member of macrolanguage Azerbaijani [aze].
North and South Azerbaijani are spoken by 1 ethnic group. Each language group is reluctant to accept the written form of the other. Muslim (Shi’a), Muslim (Sunni).