Ninjas in Ninja Hattori are from only two regions: The Koga and Ega regions. Ninja Hattori, Shinzo Hattori, Shishimaru and Tsubame (Sonam) are all from Ega while Kemuzou Kemumaki and Keiyo are from the Koga region.
The Ega Region is the village for Ega citizens. Ega Tribe ninjas live there. Some notable residents are Hattori`s father, Hattori, Shinzo, Shishimaru and Tsunami, Hattori`s mother and Hattori's sensei. Ega is a peaceful dwelling and a lot of Ninja Academies have been found there. The weather is normal and has a temperate wind. Ega Tribes mostly eat fried eggs or drink just water during their training. Young Ninjas are left to pick up leaves or help the village elders. When a Ninja becomes an adult and become stronger, they are inducted into the Ninja army, and attempt to create their own Ninja technique. There are a lot types of species there, apart from animals and humans, like monsters, giants and small bug like creatures called Ega Antlers (or Ega Insects in Hindi Dub). The current defender and leader of the Ega People is a man named Kanto as said by Hattori`s mother. The Ega are peaceful and don`t want to fight or conquer things or steal. They are strict rivals of the Koga tribe as they had a war and it is untold who wins. They would stand up to amy Koga tribe members who attack them. They started their civilization from a long river called Ega Aqua.
The Koga tribe are ruthless and love to fight. Their favourite thing is to challenge each other on a fight. They live in a grassy area, and they take water from a very long river nearby the place called the 'Sacred Water of Koga, which began their civilisation. They went to war with the Ega for stealing their ancient and sacred Ninja Technique scrolls. It is unknown who won but in an episode Kemumaki looked angry when he told Kagechiyo about the war and then finished speaking about who won. This maybe hints that the Ega Tribe won.
The Karo Region is a tribe destroyed by the Poga Tribe and conquered. They were peace loving and learnt ninja techniques for competitions, not war. They are only shown in Hattori's flashback in the manga.
The Meso Region were a tribe of harmless and weak ninjas but good and wise ones. Their land was extremely resourceful so Poga people conquered it and Meso region came to Ega Tribe for a dwelling. They are only shown in Hattori`s flashback in the manga.