The total number of surnames in the U.S. is not available, but we can know the "top ten" according to some U.S. sources.

According to the New York Times reported on November 17, 2007, the U.S. Census Bureau's latest statistics show that the U.S. top ten surnames ranked in order of Smith (Smith), Johnson (Johnson), Williams (Williams), Brown (Brown), Jones (Jones), Miller (Miller), Davis (Davis), Garcia (Davis), and the United States (Davis). Davis, Garcia, Rodriguez & Wilson.

Expanded:

Surname: A sign and symbol that marks a person's familial lineage. and symbols.

Descendants of the same ancestor are called clans. Surname first originated as the name of a tribe or the name of a tribal leader. Its function was mainly to facilitate the identification of the descendants of different clans in the tribe and to facilitate intermarriage between different clans. Therefore, the creation of the family name marks the transition from the group marriage system to the marriage system based on blood relationship, and is an important milestone in the progress of human civilization.

After the creation of the family name, it was passed down from generation to generation, and generally did not change, and was relatively stable, while the clan changed with the change of fiefs and official positions, so there will be a person's descendants have several clans or father and son of two generations of different clans. Surnames, together with personal names, make up a person's name.

"The family name is to unify the origin of one's ancestor; the clan is to distinguish the origin of one's descendants."

Since ancient times, the children of China to the family name as a sign of family continuity.

The family name is a racial code, the clan is a branch of the family name. Since the Qin and Han dynasties, surnames have been merged into one.

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