2,960,000 in Lithuania (1998). Population total all countries: 3,130,970.
Widespread. Also in Argentina, Belarus, Brazil, Canada, Estonia, Kazakhstan, Kyrgyzstan, Latvia, Poland, Russian Federation, Tajikistan, Turkmenistan, United Kingdom, United States, Uruguay, Uzbekistan.
1 (National). Statutory national language (1992, Constitution, Article 14).
Aukshtaitish (Aukshtaichiai, Aukstaitiskai, Highland Lithuanian), Dzukish (Dzukiskai), Shamaitish (Lowland Lithuanian, Samogitian, Zemachiai, Zemaitis, Zemaitiskai, Zhemaitish), Suvalkietiskai. Aukstaitiskai easily understand Suvalkai, Dzukai with some difficulty, and vice versa; Zemaitiskai difficult for others to understand.
Postpositions; genitives, relatives after noun heads
Christian, Muslim (Tatar).