Where is the surname Cai in Songxi County?

The population of contemporary Cai surname has reached 5.52 million, which is the 44th surname in China, accounting for 0.46% of the national population. The distribution of Cai surname in China is mainly concentrated in Guangdong, Zhejiang and Jiangsu provinces, accounting for about 35% of the total population of Cai surname; Secondly, it is distributed in Sichuan, Hubei, Taiwan Province, Anhui and Fujian, with a concentration of 32% in these five provinces. Guangdong is 13.7% of the total population of Cai, and it is the largest province in Cai, accounting for 1% of the total population of the whole province. The whole country has formed a region with a high proportion of Cai surnames in the southeast coastal areas. In the past 600 years, the degree and direction of Cai's population movement are somewhat different from those in the Song, Yuan and Ming Dynasties. Although there are cases of emigration to Central China and North China, it is still the mainstream to emigrate to the southeast, and some to the west and northeast.