Vilnius is the capital of Lithuania and its largest city, with a population of 580,020 as of 2020. The population of Vilnius’s functional urban area, which stretches beyond the city limits, is estimated at 697,691 (as of 2017), while according to the Vilnius territorial health insurance fund, there were 729,923 permanent inhabitants as of May 2020 in Vilnius city and Vilnius district municipalities combined. — Wikipedia