Explore the Family Name Doonan

The meaning of Doonan

Irish: shortened Anglicized form of Gaelic Ó Dúnáin ‘descendant of Dúnán’, a personal name of unexplained etymology.

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

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

Based on the Decennial U.S. Census, the popularity of the surname Doonan saw a decrease between 2000 and 2010. In 2000, it was ranked 20,898 but dropped to rank 24,186 by 2010, marking a decline of 15.73%. Similarly, the count of individuals with this last name also decreased from 1,174 in 2000 to 1,039 in 2010, reflecting an 11.5% reduction. The proportion of the surname Doonan per 100,000 people also fell by 20.45% over the same period.

20002010Change
Rank#20,898#24,186-15.73%
Count1,1741,039-11.5%
Proportion per 100k0.440.35-20.45%

Race and Ethnicity of people with the last name Doonan

When discussing ethnicity based on the Decennial U.S. Census data, the Doonan surname is predominantly associated with those of White ethnicity, although there was a slight decrease in this group from 97.27% in 2000 to 96.54% in 2010. The surname also showed a notable increase within the Hispanic community, rising from 0.77% in 2000 to 1.73% in 2010. There was a small upward trend among Black holders of the Doonan surname, increasing from 0.51% to 0.58%. Those identifying with two or more races decreased from 1.02% to 0.77%, while there was no representation from Asian/Pacific Islander or American Indian and Alaskan Native groups in either year.

20002010Change
White97.27%96.54%-0.75%
Hispanic0.77%1.73%124.68%
Two or More Races1.02%0.77%-24.51%
Black0.51%0.58%13.73%
Asian/Pacific Islander0%0%0%
American Indian and Alaskan Native0%0%0%