Thanks to this world map that shows the density of people with the surname Saika in different countries, you can get an idea not only of the popularity of the surname Saika in each country but also of the different migrations of people surnamed Saika.
The quantity of people with the surname Saika that we can find in each country can help us discern the origin of the surname Saika, as logic tells us that the place with the most people surnamed Saika will be the country or area of origin of the surname Saika.