Explore the Family Name Mcilwaine

The meaning of Mcilwaine

Irish (northern) and Scottish: variant of McElwain.

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

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

Based on the data from the Decennial U.S. Census, the popularity of the surname Mcilwaine has seen a slight increase between 2000 and 2010. Ranked as the 54,880th most popular surname in 2000, it climbed to the 53,667th spot by 2010, showing a 2.21% change in rank. Furthermore, the count of individuals bearing this surname also went up by 9.69%, increasing from 351 in 2000 to 385 in 2010. This growth is noteworthy despite the proportion per 100k remaining constant over the decade.

20002010Change
Rank#54,880#53,6672.21%
Count3513859.69%
Proportion per 100k0.130.130%

Race and Ethnicity of people with the last name Mcilwaine

Examining the ethnic identity based on the Decennial U.S. Census, the Mcilwaine surname appears predominantly associated with White ethnicity with a minor decline of 0.54% from 72.08% in 2000 to 71.69% in 2010. The second highest percentage pertains to those of Black ethnicity, which experienced a slight decrease from 24.50% in 2000 to 23.90% in 2010. An intriguing observation is the significant drop in Hispanic association from 2.85% in 2000 to 1.56% in 2010, indicating a 45.26% decrease. There were no registered occurrences of this surname among the Asian/Pacific Islander, American Indian and Alaskan Native groups, or those identifying with two or more races during both census years.

20002010Change
White72.08%71.69%-0.54%
Black24.5%23.9%-2.45%
Hispanic2.85%1.56%-45.26%
Asian/Pacific Islander0%0%0%
Two or More Races0%0%0%
American Indian and Alaskan Native0%0%0%