The population ranking of the region is as follows:

1. Lixin County. In 2020, the registered population of Lixin County was 1.7458 million, of which the male population was 921,600, the female population was 824,200, the urban population was 283,200, and the total permanent population was 1.252 million. The male population is more than the female population, and the registered population is more than the permanent population.

2. Woyang County. In 2020, the registered population of Woyang County was 1.7201 million, of which the male population was 905,200, the female population was 814,900, the urban population was 379,000, and the total permanent population was 1.319 million. The male population is larger than the female population, and the permanent population is larger than the registered population.

3. Qiaocheng District. In 2020, the registered population of Qiaocheng District was 1.6994 million, of which the male population was 882,200, the female population was 817,100, the urban population was 353,200, and the total permanent population was 1.531 million. The male population is larger than the female population, and the permanent population is larger than the registered population.

4. Mengcheng County. In 2020, the registered population of Mengcheng County was 1.4646 million, of which the male population was 770,200, the female population was 694,500, the urban population was 314,300, and the total permanent population was 1.161 million. The male population is larger than the female population, and the permanent population is larger than the registered population.