TallinnTallinn (ˈtælɪn,_ˈtɑːlɪn) is the capital and most populous city of Estonia. Situated on a bay in north Estonia, on the shore of the Gulf of Finland of the Baltic Sea, Tallinn has a population of about 454,000 (as of 2023) and administratively lies in the Harju maakond (county). Tallinn is the main financial, industrial, and cultural centre of Estonia. It is located northwest of the country's second largest city, Tartu, however only south of Helsinki, Finland, also west of Saint Petersburg, Russia, north of Riga, Latvia, and east of Stockholm, Sweden.