Explore the Family Name Mcstay

The meaning of Mcstay

Irish (Ulster, especially Down and Armagh): altered, Anglicized form (by erroneous association with the prefix Mac) of Gaelic Ó Maoilstéighe ‘descendant of Maoilstéighe’, a personal name beginning maol ‘tonsured one, devotee’. This surname was once Anglicized as O’Mustey, a form that is no longer found.

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

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

Based on the Decennial U.S. Census data, the popularity of the surname Mcstay has slightly increased between 2000 and 2010. In 2000, the surname ranked 52,174th in popularity with a count of 374, or 0.14 per 100,000 people. By 2010, the rank had risen marginally to 51,610, with an increase in count to 403, but the proportion per 100,000 remained at 0.14.

20002010Change
Rank#52,174#51,6101.08%
Count3744037.75%
Proportion per 100k0.140.140%

Race and Ethnicity of people with the last name Mcstay

The census data also reveals shifts in the ethnic identity associated with the Mcstay surname. In 2000, the majority of individuals with this surname identified as White (93.05%), followed by those identifying as Hispanic (3.21%), and a small proportion as two or more races (1.87%). There was no representation from the Asian/Pacific Islander, Black, or American Indian and Alaskan Native groups. A decade later, the percentage of those identifying as White decreased slightly to 92.31%, while the percentage of those identifying as two or more races increased to 2.23%. The percentage of those identifying as Hispanic remained almost steady at 3.23%, and the Asian/Pacific Islander group appeared for the first time, with a representation of 1.49%. The Black, and American Indian and Alaskan Native groups remained unrepresented.

20002010Change
White93.05%92.31%-0.8%
Hispanic3.21%3.23%0.62%
Two or More Races1.87%2.23%19.25%
Asian/Pacific Islander0%1.49%0%
Black0%0%0%
American Indian and Alaskan Native0%0%0%