Lithuania
Population

Population: 2,793,284 (July 2018 est.)
2,823,859 (July 2017 est.)

Ethnic groups: Lithuanian 84.1%, Polish 6.6%, Russian 5.8%, Belarusian 1.2%, other 1.1%, unspecified 1.2% (2011 est.)
Languages: Lithuanian (official) 82%, Russian 8%, Polish 5.6%, other 0.9%, unspecified 3.5% (2011 est.)
Religions: Roman Catholic 77.2%, Russian Orthodox 4.1%, Old Believer 0.8%, Evangelical Lutheran 0.6%, Evangelical Reformist 0.2%, other (including Sunni Muslim, Jewish, Greek Catholic, and Karaite) 0.8%, none 6.1%, unspecified 10.1% (2011 est.)
Source: World Factbook

The Lithuanian Department of Statistics (Statistics Lithuania) is a public authority coordinating official statistics in the country that participates in developing and implementing public policy in the field of organisation and methodology of statistics assigned to the Minister of Finance.
stat.gov.lt