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