Thanks to various fertility incentive measures, the cultivator population of the Zhou Clan has always grown quite rapidly. It's just that the cultivator population of the Zhou Clan was previously so small that the population size and the territory occupied by the clan seemed seriously mismatched.
In fact, a comparison of data clearly shows the growth rate of the Zhou Clan's population.
A hundred years ago, when Zhouyang first took over as the Zhou Family Patriarch, the cultivator population of the Zhou family was less than thirty people, with the number of cultivators from the "Xuan" and "Yuan" generations, which comprised the main population, only reaching slightly over twenty altogether.
Now, a hundred years later, the cultivator population of the Zhou family has increased tenfold, with the number of cultivators from the "Guang" and "Tong" generations, who constitute the main population, each exceeding a hundred people.