Explore the Family Name Mcilwain
The meaning of Mcilwain
Irish (northern) and Scottish: variant of McElwain.
Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.
How common is the last name Mcilwain in the United States?
Based on the Decennial U.S. Census data, the popularity of the surname Mcilwain has witnessed a slight decline over the decade from 2000 to 2010. In 2000, it ranked at 10,327 and decreased to 10,657 by 2010, indicating a change of -3.2. The total count of individuals with this surname, however, rose from 2,859 in 2000 to 3,002 in 2010, marking a growth rate of 5.0 percent. The proportion per 100,000 people also showed a minor decrease of -3.77 during this period.
| 2000 | 2010 | Change | |
|---|---|---|---|
| Rank | #10,327 | #10,657 | -3.2% |
| Count | 2,859 | 3,002 | 5% |
| Proportion per 100k | 1.06 | 1.02 | -3.77% |
Race and Ethnicity of people with the last name Mcilwain
The Decennial U.S. Census data reveals interesting shifts in the ethnic identities associated with the Mcilwain surname between 2000 and 2010. The percentage of those identifying as White declined slightly from 66.91 to 63.66 percent, while the proportion identifying as Black increased from 29.94 to 32.88 percent. Meanwhile, there was a significant increase in people identifying with two or more races, jumping from 0.94 to 1.37 percent. Those identifying as Asian/Pacific Islander and Hispanic saw modest increases, while the American Indian and Alaskan Native group experienced a decrease in representation among people with the surname Mcilwain.
| 2000 | 2010 | Change | |
|---|---|---|---|
| White | 66.91% | 63.66% | -4.86% |
| Black | 29.94% | 32.88% | 9.82% |
| Hispanic | 1.36% | 1.43% | 5.15% |
| Two or More Races | 0.94% | 1.37% | 45.74% |
| American Indian and Alaskan Native | 0.56% | 0.37% | -33.93% |
| Asian/Pacific Islander | 0.28% | 0.3% | 7.14% |