Explore the Family Name Mulloy

The meaning of Mulloy

Irish (mainly Mayo): variant of Molloy. Some characteristic forenames: Irish Brigid, Padraic, Seamus.

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

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

According to the Popularity table based on the Decennial U.S. Census, the surname Mulloy was ranked 15,391 in 2000 and slipped slightly to 16,031 in 2010, marking a decrease of 4.16 percent. Despite this drop in rank, the number of people with the Mulloy surname increased from 1,750 in 2000 to 1,809 in 2010, an increase of 3.37 percent. However, when looking at the proportion per 100,000 people, there was a slight decrease from 0.65 in 2000 to 0.61 in 2010, representing a decline of 6.15 percent.

	2000	2010	Change
Rank	#15,391	#16,031	-4.16%
Count	1,750	1,809	3.37%
Proportion per 100k	0.65	0.61	-6.15%

Race and Ethnicity of people with the last name Mulloy

The Ethnicity table from the Decennial U.S. Census reveals the ethnic identity associated with the surname Mulloy over a decade. While the majority of people with this surname identified as White (96.74 percent in 2000 and 94.97 percent in 2010), there were notable changes among other ethnic groups. The percentage of individuals identifying as Asian/Pacific Islander rose by 29.41 percent, while those identifying as Hispanic saw a significant increase of 209.89 percent. The representation of American Indian and Alaskan Native and Black within the Mulloy surname emerged in 2010, standing at 0.33 and 0.28 percent respectively. However, the percentage of those identifying with two or more races decreased from 1.26 percent in 2000 to 0.94 percent in 2010.

	2000	2010	Change
White	96.74%	94.97%	-1.83%
Hispanic	0.91%	2.82%	209.89%
Two or More Races	1.26%	0.94%	-25.4%
Asian/Pacific Islander	0.51%	0.66%	29.41%
American Indian and Alaskan Native	0%	0.33%	0%
Black	0%	0.28%	0%