User blog comment:Shadow at Morning/Determination of the Size of Vale via Cartographic Analysis/@comment-27337536-20150130022224

You finished your cartography project! Been waiting for it.

Some good points, expanding off what you mentions: The sheer amount of land area available to Vale suggests that its populations is at least in the tens of millions, likely significantly higher. Even accounting for industrial and agricultural operations, there is easily enough room for this many people to live comfortably. In fact, since the entire society lives within the confines of the walls, the city is, like most existing megalopoleis, not entirely urbanized, even in the commercial and residential zones

This definitely makes sense as it is more more logical to poll resources together creating & defending one area from Grimm then hundreds of city states. Also explains why expanding outside the city to Mountain Glenn was a big deal.

It would be nice if we could get some accurate cannon scale bars for maps from Monty, would really like to update the scale bars on my maps since I went with what the Vale maps had and those don't translate to the whole world.