A total of 3.03 million people had declared their place of residence in Lithuania as of October 1, down by 2,400 compared with the start of the year.

"However, we see increase of around 1,500 in the third quarter," Paulius Rudzkis of the Center of Registers said at a news conference. "Among the major cities and towns, Vilnius is the leader, and there is some growth in both Kaunas and Klaipeda, too."

Since a person's actual place of residence may differ from their declared place of residence, the actual size of the population size may be different, he noted.

The population increased by 7,200 to 578,000 in Vilnius, by 300 to 309,000 in Kaunas, and by 1,100 to 166,000 in Klaipeda over the nine months.