Explore the Family Name Mordaunt

The meaning of Mordaunt

English and Irish (of Norman origin): nickname from Old French mordant ‘biting, sarcastic’.

Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.

How common is the last name Mordaunt in the United States?

According to the data sourced from the Decennial U.S. Census, the surname Mordaunt held a rank of 82,344 in popularity in the year 2000 and slightly dropped to 82,613 by 2010. This marked a minimal change of -0.33 over the decade. In terms of count, the number of people bearing the Mordaunt surname increased from 213 in 2000 to 228 in 2010, showing growth of 7.04%. The proportion per 100,000 people remained stable at 0.08.

20002010Change
Rank#82,344#82,613-0.33%
Count2132287.04%
Proportion per 100k0.080.080%

Race and Ethnicity of people with the last name Mordaunt

The ethnicity breakdown for the surname Mordaunt from the Decennial U.S. Census reveals that in the year 2000, 84.98% identified as White, but this percentage decreased to 81.14% by 2010. The Black ethnic identity showed an increase from 9.39% in 2000 to 10.09% in 2010. Interestingly, individuals identifying with Hispanic ethnicity, which was not reported in 2000, made up 7.02% in 2010. However, the representation of Asian/Pacific Islander and American Indian and Alaskan Native ethnicities remained unchanged at 0.00%. There was also a decrease in those identifying as two or more races, reporting 2.35% in 2000 but none in 2010.

20002010Change
White84.98%81.14%-4.52%
Black9.39%10.09%7.45%
Hispanic0%7.02%0%
Asian/Pacific Islander0%0%0%
Two or More Races2.35%0%0%
American Indian and Alaskan Native0%0%0%