So a random thought popped into my head this morning, and after running with it, I decided to share it here in hopes that others might find it interesting.
We're told that the Allied Shinobi Force consists of 80,000 ninjas from all five countries. Using some basic assumptions, we can treat this like a Fermi problem and try to come up with some basic population statistics for the countries in Naruto.
Presuming that the forces of all five great countries are roughly equal - which is not unreasonable, given that they seem to be roughly balanced in overall military power - that would mean that each country has about 16,000 ninjas. (This is a liberal estimate, since we're discounting the overall contribution of the samurai from the Land of Iron.)
We'll make another liberal estimate by saying that ninjas consist of 10% of the adult population in each country. We're stretching the term "adult" here, since we see that kids graduate from the academy in their early teens, but given the number of people we see in other occupations, this seems plausible enough.
So each country has an adult population of 160,000; okay, but what about the child population? In present-day America, the percentage of children (ages 0-17) in the total population is just under 25% (table 2 under the tab "population"). However, we've defined "adulthood" here as beginning in the teenage years, as mentioned above, so this percentage should go down for Naruto's world.
On the other hand, huge wartime losses would mean that the populace would likely be having more children - for both psychological (people tend to have sex more when the threat of death is greater) and sociological (you don't want your enemy nations to outnumber you, so social pressures to have sex and start a family are likely greater...hence why there's a female ninja in each team, perhaps?) reasons. As such, we'll say that the 13-and-under populace is 25%.
25% of a total figure, where the remainder is 160,000, comes to a grand total of about 213,000 - but since that's an inelegant figure, and because we've done some rounding, we'll say that each of the five countries has a grand total of 200,000 people, or a combined population of one million.
Except, that number is too small. What about the people from the Land of Iron that we discounted earlier? What about those smaller nations that pop up in the filler arcs and movies? Since we've used generous statistics up until now, let's assume that these groups collectively double the total population - they're just too diffusely scattered to collectively challenge the current political structure.
So the total population overall is a paltry two million people. That means that ninjas make up a grand total of 0.8% of the population (this has ninjas as only being from the five great nations - if you presume that the smaller countries have a proportional number of ninjas, samurai, or other empowered fighters, then this number doubles to a still-tiny 1.6% of the total population).
That's...incredibly small. Most countries in contemporary Earth have a higher population than this - Puerto Rico has almost double that; Ireland is more than double.
Moreover, these people won't have uniform distribution - people tend to cluster in urban areas; this will be especially true in the five great nations, as the major population center in each country is where new ninjas are trained. To make another comparison to America, roughly 80% of the population lives in a city.
Since we only see a single major city (or rather "village") in each country, this would seem to be the sole urban area for each nation. Since the people who aren't residents of one of the five great nations don't count here, that means that 80% of each nation's 200,000 people live in Hidden (Something) Village, or 160,000 people (being children, adults, and virtually all of the ninjas) in each village.
So, in other words, Konoha is about the size of Salem, Oregon or Vancouver, Washington. Incredibly tiny, at least compared to what we think of as a city - perhaps why they keep calling them villages; while they know that they're the largest population centers around, they're still not that big.
What's also interesting to consider is the scope of the continent that all of these nations are on against the backdrop of the rest of the world. The second movie posits that there's another continent across the sea, one with apparently greater technology (based on "gelel" stones). That idea makes a surprising amount of sense, since it's hard to imagine that the entire world would have so few people, especially if you consider that the continent that the five great nations is on has no natural bridge to any greater landmass.
If there are larger continents with greater populations living on them, what would they think of the land where Naruto and the ninjas live?
Considering that that place is apparently the only one to have developed the use of chakra, and has a long history of being ravaged by the Bijuu (and the Juubi before that), one gets the impression that - if other places know about their island at all - they'd think of it in the same way that we'd think of Skull Island from King Kong: a savage place with giant monsters, to say nothing of the hostile populace armed with strange magical powers.
While I have no plans to write one, a fic based on that premise might be fun to read!
We're told that the Allied Shinobi Force consists of 80,000 ninjas from all five countries. Using some basic assumptions, we can treat this like a Fermi problem and try to come up with some basic population statistics for the countries in Naruto.
Presuming that the forces of all five great countries are roughly equal - which is not unreasonable, given that they seem to be roughly balanced in overall military power - that would mean that each country has about 16,000 ninjas. (This is a liberal estimate, since we're discounting the overall contribution of the samurai from the Land of Iron.)
We'll make another liberal estimate by saying that ninjas consist of 10% of the adult population in each country. We're stretching the term "adult" here, since we see that kids graduate from the academy in their early teens, but given the number of people we see in other occupations, this seems plausible enough.
So each country has an adult population of 160,000; okay, but what about the child population? In present-day America, the percentage of children (ages 0-17) in the total population is just under 25% (table 2 under the tab "population"). However, we've defined "adulthood" here as beginning in the teenage years, as mentioned above, so this percentage should go down for Naruto's world.
On the other hand, huge wartime losses would mean that the populace would likely be having more children - for both psychological (people tend to have sex more when the threat of death is greater) and sociological (you don't want your enemy nations to outnumber you, so social pressures to have sex and start a family are likely greater...hence why there's a female ninja in each team, perhaps?) reasons. As such, we'll say that the 13-and-under populace is 25%.
25% of a total figure, where the remainder is 160,000, comes to a grand total of about 213,000 - but since that's an inelegant figure, and because we've done some rounding, we'll say that each of the five countries has a grand total of 200,000 people, or a combined population of one million.
Except, that number is too small. What about the people from the Land of Iron that we discounted earlier? What about those smaller nations that pop up in the filler arcs and movies? Since we've used generous statistics up until now, let's assume that these groups collectively double the total population - they're just too diffusely scattered to collectively challenge the current political structure.
So the total population overall is a paltry two million people. That means that ninjas make up a grand total of 0.8% of the population (this has ninjas as only being from the five great nations - if you presume that the smaller countries have a proportional number of ninjas, samurai, or other empowered fighters, then this number doubles to a still-tiny 1.6% of the total population).
That's...incredibly small. Most countries in contemporary Earth have a higher population than this - Puerto Rico has almost double that; Ireland is more than double.
Moreover, these people won't have uniform distribution - people tend to cluster in urban areas; this will be especially true in the five great nations, as the major population center in each country is where new ninjas are trained. To make another comparison to America, roughly 80% of the population lives in a city.
Since we only see a single major city (or rather "village") in each country, this would seem to be the sole urban area for each nation. Since the people who aren't residents of one of the five great nations don't count here, that means that 80% of each nation's 200,000 people live in Hidden (Something) Village, or 160,000 people (being children, adults, and virtually all of the ninjas) in each village.
So, in other words, Konoha is about the size of Salem, Oregon or Vancouver, Washington. Incredibly tiny, at least compared to what we think of as a city - perhaps why they keep calling them villages; while they know that they're the largest population centers around, they're still not that big.
What's also interesting to consider is the scope of the continent that all of these nations are on against the backdrop of the rest of the world. The second movie posits that there's another continent across the sea, one with apparently greater technology (based on "gelel" stones). That idea makes a surprising amount of sense, since it's hard to imagine that the entire world would have so few people, especially if you consider that the continent that the five great nations is on has no natural bridge to any greater landmass.
If there are larger continents with greater populations living on them, what would they think of the land where Naruto and the ninjas live?
Considering that that place is apparently the only one to have developed the use of chakra, and has a long history of being ravaged by the Bijuu (and the Juubi before that), one gets the impression that - if other places know about their island at all - they'd think of it in the same way that we'd think of Skull Island from King Kong: a savage place with giant monsters, to say nothing of the hostile populace armed with strange magical powers.
While I have no plans to write one, a fic based on that premise might be fun to read!