Last NameCASTOR

Key Findings

• Popularity: Castor is the 6,224th most popular first name in the U.S., placing it among the top 99.3% all first names.
• Population: An estimated 6 thousand Americans bear the name Castor. Based strictly on 100 years of Social Security Administration (SSA) baby name records, the living population with this name is roughly .
• Frequency: Approximately 2 out of every 100,000 Americans are named Castor.
• Usage: It is most often used as a last name (95% of the time).