How Common Is the Surname Castle?
The surname Castle is the #1,744 most common last name in the United States, with an estimated 23,378 bearers. That's about 1 in 14,368 Americans. This data comes from the 2010 U.S. Census Bureau surname frequency tables.
This page covers the Castle surname's frequency in the U.S. population, its rank among all American surnames, and a breakdown of ancestry and ethnicity data from the Census. You can also check how many people share any first + last name combination involving Castle.
Estimated Americans with this Surname
23,378
About 1 in 14,368 people in the U.S.
Census Rank
#1,744
Frequency Rate
6.96
per 100,000 people
Census Count
20,534
2010 Census
Data Source
2010
U.S. Census Bureau
Ancestry and Ethnicity for Castle
The Castle surname is most commonly associated with people who identify as White (88.04%). The next largest groups are Black (6.74%) and Hispanic (2.64%).
Self-reported race and ethnicity from the 2010 U.S. Census Bureau surname tables. Some categories may be suppressed for privacy when sample sizes are small.
How Many People Are Named ... Castle?
Pair the Castle surname with a first name to estimate how many people share that full name in the United States.
Castle Surname: Questions and Answers
How common is the last name Castle?
Castle is the #1,744 most common surname in the United States, with an estimated 23,378 people sharing this last name. It appears at a rate of 6.96 per 100,000 Americans.
What ethnicity is the surname Castle?
The Castle surname is most commonly associated with people who identify as White (88.04%). The next largest groups are Black (6.74%) and Hispanic (2.64%). This data comes from the 2010 U.S. Census Bureau surname tables, which include self-reported race and ethnicity breakdowns.
How many people named [First Name] Castle are there?
We can estimate any first + last name combination. Popular examples: Michael Castle, James Castle, John Castle. Search any combination on our homepage.
Where does this surname data come from?
Surname frequency data comes from the 2010 U.S. Census Bureau decennial surname tables. These list every surname appearing in the Census along with frequency rates and demographic breakdowns. Full methodology.
Search for a full name combination
How Many of Me