Explore the Family Name Mulroy

The meaning of Mulroy

Irish (Mayo): Anglicized form of Gaelic Ó Maolruaidh ‘descendant of Maolruadh’, a personal name composed of the elements maol ‘chief’ + ruadh ‘red’, i.e. ‘red-haired chieftain’. This surname, from has sometimes been changed to Munroe (see Munro).

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

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

Based on the Decennial U.S. Census data, the surname Mulroy has seen a modest rise in popularity from 2000 to 2010. In 2000, it ranked 20,367th, but by 2010, it had moved up to 20,971st, a change of -2.97%. The count of individuals with this surname also increased over this time period, growing from 1,213 in 2000 to 1,255 in 2010, a rise of 3.46%. However, when considering the proportion per 100,000 people, the name saw a slight decrease, moving from 0.45 in 2000 to 0.43 in 2010, a drop of -4.44%.

	2000	2010	Change
Rank	#20,367	#20,971	-2.97%
Count	1,213	1,255	3.46%
Proportion per 100k	0.45	0.43	-4.44%

Race and Ethnicity of people with the last name Mulroy

In terms of ethnicity, the Decennial U.S. Census data shows a few shifts in the ethnic identity among those bearing the surname Mulroy between 2000 and 2010. In 2000, 96.04% identified as White, dipping slightly to 95.30% in 2010. The percentage identifying as Hispanic rose from 1.57% in 2000 to 1.83% in 2010. Those identifying with Two or more races increased from 0.82% in 2000 to 1.12% in 2010. Interestingly, there was no representation from the Asian/Pacific Islander community in 2010, despite making up 0.82% in 2000. A new appearance in 2010 came from the American Indian and Alaskan Native category, at 0.88%, where there had been none in 2000.

	2000	2010	Change
White	96.04%	95.3%	-0.77%
Hispanic	1.57%	1.83%	16.56%
Two or More Races	0.82%	1.12%	36.59%
American Indian and Alaskan Native	0%	0.88%	0%
Asian/Pacific Islander	0.82%	0%	0%
Black	0%	0%	0%