Although Konoha is said to be the largest of the five great
shinobi villages, we’re never really given an explicit estimate or guideline towards
how many people live in Konoha. The Allied Shinobi Forces are said to be 80,000
strong, comprised of shinobi from Konoha, Iwa, Kiri, Kumo, and Suna, as well as
samurai from the Land of Iron. However, I don’t believe there’s any indication
as to what percentage each force makes up in the final count. If you divide it
evenly among the six nations, it comes out to roughly 13,000 per nation, which
is utterly impossible in terms of sustainability—unless the ninja villages are
turning out thousands of new shinobi per year, there’s absolutely no way they
can contribute that many people to an army. The only way the 80,000 number
seems credible is if almost all of that number are samurai, because in my opinion,
Konoha can’t have more than about 3,000 people living in it.