Explore the Family Name Cloonan

The meaning of Cloonan

Irish (Galway): Anglicized form of Gaelic Ó Cluanáin ‘descendant of Cluanán’, a name from a diminutive of cluanach ‘beguiling, flattering, deceitful’.

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

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

Based on the Decennial U.S. Census data, the popularity of the surname Cloonan has seen a slight decline from 2000 to 2010. Ranked 25,991st in 2000, it slipped to 26,814th position in 2010, marking a decrease of 3.17%. Despite this drop in ranking, the actual count of individuals bearing the Cloonan surname increased modestly from 887 to 907 over the same period, reflecting a growth of 2.25%. However, when measured as a proportion per 100,000 people, the presence of the Cloonan surname declined by 6.06% over the decade.

	2000	2010	Change
Rank	#25,991	#26,814	-3.17%
Count	887	907	2.25%
Proportion per 100k	0.33	0.31	-6.06%

Race and Ethnicity of people with the last name Cloonan

The ethnic identity associated with the last name Cloonan remained predominantly White between 2000 and 2010 per the Decennial U.S. Census. In 2000, 97.52% of those with the Cloonan name identified as White, which slightly decreased to 96.47% in 2010. The presence of the surname within the Hispanic community saw a significant increase of 38.52%, even though it only accounted for 1.87% of the total Cloonans in 2010. While the Asian/Pacific Islander representation among Cloonans marginally dipped by 2.53%, the group identifying with two or more races emerged from zero in 2000 to 0.88% in 2010. There were no significant changes in the proportions of Black and American Indian and Alaskan Native communities bearing the surname during this period.

	2000	2010	Change
White	97.52%	96.47%	-1.08%
Hispanic	1.35%	1.87%	38.52%
Two or More Races	0%	0.88%	0%
Asian/Pacific Islander	0.79%	0.77%	-2.53%
Black	0%	0%	0%
American Indian and Alaskan Native	0%	0%	0%