Where the Santa comes from is disputed, but if you ask the children in Finland, they answer that he comes from Korvatunturi, a mountain on the border between Finland and Russia.
They have it from a credible source: every year the TV news shows Santa's departure before the Christmas weekend and there is even a real postal address where children can send wish lists and questions.
On Christmas Eve, the children can also get answers to questions on live TV from Santa, which is called joulupukki in Finnish and Santa Claus in Finnish-Swedish.
Strong tradition and brand feud
The myth that the plot lives on Korvatunturi was born in the 1920s when a radio journalist told a story about the plot's domicile.
Since then, Finland has worked hard to establish Santa Claus as Finnish.
The town of Rovaniemi has been designated an official Santa town, and tourists usually flock there at Christmas time to meet Santa and go sleigh rides in the northern lights.
One of the competitors for Santa's domicile is Greenland.
However, the tourist organization Visit Greenland gave up in 2017, calling the tourism industry in Rovaniemi a bit bitter for "a Disney show" that they can not compete with.
Children who sent their letters to Greenland did not receive a reply for a few years, because the Santa workshop there had gone bankrupt.
But in Finland, Santa Claus still seems to be doing well, despite the pandemic.
Because before this year's departure, the TV news informs the children that Santa Claus has been declared immune to covid-19 and can thus go out into the world.
In the video above, you can see Santa's departure.