User blog comment:Vannesira Smith/Sizes of the Human Kingdoms: Part 2/@comment-33909829-20170825081136/@comment-26581666-20170825105424

Yeah, Stromgarde's numbers are definately pre-Dark Portal, the calculation is basically the population density possible. Especially after Legion resulted in most of the surviving population being scourged. It would probably be best to divide by at least 10 to get the current sizes, if not more.

An allternative, and probably the best, way to work out the current population density is apply the listed people per square mile to Carthan or whatever area you're doing and go for there. The main thing to keep in mind in that case is smaller provinces and/or principalities can fluctuate heavily, the overal density is how much it can support as a kingdom.

For example, using Rustridge for example, it has a population density of 270 people per square mile, which is only possible because it relies on food imports from Westfall. So as long as there's somewhere where it is realisticly importing food from, then it could easily have a lot more people (especially given that refugees from the rest of Stromgarde would probably have flooded into the surviving fiefdoms).