How Common Is the Surname Knox?
The surname Knox is the #769 most common last name in the United States, with an estimated 50,955 bearers. That's about 1 in 6,592 Americans. This data comes from the 2010 U.S. Census Bureau surname frequency tables.
This page covers the Knox 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 Knox.
Estimated Americans with this Surname
50,955
About 1 in 6,592 people in the U.S.
Census Rank
#769
Frequency Rate
15.17
per 100,000 people
Census Count
44,742
2010 Census
Data Source
2010
U.S. Census Bureau
Ancestry and Ethnicity for Knox
The Knox surname is most commonly associated with people who identify as White (63.40%). The next largest groups are Black (30.58%) and Two or More Races (2.49%).
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 ... Knox?
Pair the Knox surname with a first name to estimate how many people share that full name in the United States.
Knox Surname: Questions and Answers
How common is the last name Knox?
Knox is the #769 most common surname in the United States, with an estimated 50,955 people sharing this last name. It appears at a rate of 15.17 per 100,000 Americans.
What ethnicity is the surname Knox?
The Knox surname is most commonly associated with people who identify as White (63.40%). The next largest groups are Black (30.58%) and Two or More Races (2.49%). 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] Knox are there?
We can estimate any first + last name combination. Popular examples: Michael Knox, James Knox, John Knox. 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
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