Jiuzhen County is located in the Southern Barbarians area, with little development, making it not very prosperous.
Such a place naturally has a sparse population.
Before Jinghai Country was destroyed, it was said to have a territory of a thousand miles, with a population of 500,000 households, capable of fielding 300,000 troops.
However, this bragging was just for show; if you took it seriously, you would be foolish.
As Lu Yuan estimated.
Jinghai Country's so-called 500,000 households were mostly exaggerated; if halved, having 300,000 households was considered good enough.
As for fielding 300,000 troops, it seems like all adult men would be counted.
Taking into consideration the above two sets of data, Jinghai Country's so-called territory of a thousand miles, having a population of 1.5 to 1.6 million would be considered good enough.