What is the surname of China people?

What is China's last name? I don't have a definite answer. My surname is Yin, which is rare. According to genealogical records, Yin's ancestral home was in the coastal township of Linhai County, Tongzhou City, Shandong Province. Three ancestors migrated to Henan 500 years ago (Jiajing period of Ming Dynasty). At that time, one fell to Wu Yang County (old Wu Yuan County and Wu Yang County are now collectively called Yuanyang County), one fell to Linying County and the other fell to Xiping County. I come from Wu Yang. Twenty years ago, according to my father's investigation, there were about 2,000 people in Yuanyang, Xinxiang and Huixian, and about 200 people in Xiping and Linying, which didn't add up to 3,000 people. If you list the numbers, you will know that surnames are the least.