Castor — Last Name Origin & Meaning

Unknown origin Rank #5,722 in the US 6,063 Americans

US Rank (2010)
#5,722
▲ Up 222 since 2000
People in the US
6,063
2.06 per 100K people
Origin
Unknown
Unknown

Origin & Meaning of the Castor Surname

What does the last name Castor mean?

The surname Castor carries the meaning "Origin and meaning under research." It is derived from the Unknown language and has been passed down through generations, reflecting the occupations, locations, or characteristics of early bearers of the name. With 6,063 bearers in the 2010 US Census, Castor ranks as the #5,722 most common surname in the United States.

Where does the surname Castor come from?

The Castor surname has its roots in Unknown heritage. Names of Unknown origin often reflect the cultural, linguistic, and historical traditions of the communities where they first appeared. Over centuries, migration and cultural exchange have spread the Castor name far beyond its original homeland.

Language of Origin

The linguistic roots of Castor trace back to Unknown. Understanding the original language helps decode the meaning and evolution of the name from its earliest recorded forms to the modern spelling used today.

Unknown Unknown

Quick Facts

Surname Castor
Meaning Origin and meaning under research
Origin Unknown
Language Unknown
US Rank (2010) #5,722
US Count (2010) 6,063
Per 100K People 2.06
First Letter C

Ethnic Distribution of Castor

According to the US Census, the Castor surname is distributed across the following ethnic groups. This data reflects self-reported ethnicity among 6,063 Americans with the Castor last name.

White 61.34%
Black 11.17%
Hispanic 20.55%
Asian/PI 4.73%
Native American 0.43%
Two+ Races 1.78%
Ethnic distribution of the Castor surname in the US (2010 Census)
Ethnicity Percentage
White61.34%
Black11.17%
Hispanic20.55%
Asian/Pacific Islander4.73%
Native American0.43%
Two or More Races1.78%

Popularity of Castor Over Time

Comparing US Census data from 2000 and 2010 shows how the Castor surname has changed in prevalence.

Census 2000
#5,944
5,331 people
Up 222
Census 2010
#5,722
6,063 people

The number of Americans with the Castor surname increased by 732 between 2000 and 2010.

Discover Your Castor Ancestry

Uncover your family's history with a DNA test. Learn where your Castor ancestors came from and connect with relatives worldwide.

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Similar Surnames to Castor

These surnames share similar popularity, spelling, or cultural background with Castor.

Other Unknown Surnames

Explore more surnames with Unknown roots. There are 162,254 surnames in our database — here are some that share the same Unknown origin as Castor.

Frequently Asked Questions About Castor

The surname Castor is of Unknown origin. Origin and meaning under research
The surname Castor is ranked #5,722 in the United States with approximately 6,063 people bearing this name as of the 2010 US Census.
Origin and meaning under research. The name has Unknown roots and has been present in the United States for generations.
According to US Census data, the Castor surname is distributed as: 61.3% White, 11.2% Black, 20.6% Hispanic. This reflects the diverse heritage of Americans with this name.
To trace your Castor ancestry, consider using DNA testing services like Ancestry.com, 23andMe, or MyHeritage. These services can connect you with relatives and reveal your ethnic heritage and migration patterns.

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