Explore the Family Name Mcdiffett
The meaning of Mcdiffett
Irish: variant of McDevitt.
Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.
How common is the last name Mcdiffett in the United States?
Based on data from the Decennial U.S. Census, the popularity of the surname Mcdiffett slightly decreased between 2000 and 2010. In 2000, it ranked 83,301 in popularity, falling to 84,748 by 2010, a decline of 1.74 percent. However, the total count of individuals with the Mcdiffett surname increased from 210 to 221 during this decade, representing a growth of 5.24 percent. Despite this, the proportion of people with this surname per 100,000 individuals fell by 12.5 percent.
| 2000 | 2010 | Change | |
|---|---|---|---|
| Rank | #83,301 | #84,748 | -1.74% |
| Count | 210 | 221 | 5.24% |
| Proportion per 100k | 0.08 | 0.07 | -12.5% |
Race and Ethnicity of people with the last name Mcdiffett
In terms of ethnic identity, the Decennial U.S. Census data reveals that most individuals with the Mcdiffett surname identified as White in both 2000 and 2010, though there was a slight decrease from 99 percent to 95.48 percent over the decade. There were no individuals identifying as Asian/Pacific Islander, Hispanic, Black, or American Indian and Alaskan Native. Interestingly, the decade saw an emergence of individuals identifying with two or more races, accounting for 2.71 percent of individuals with the Mcdiffett surname in 2010, where none had identified as such in 2000.
| 2000 | 2010 | Change | |
|---|---|---|---|
| White | 99% | 95.48% | -3.56% |
| Two or More Races | 0% | 2.71% | 0% |
| Asian/Pacific Islander | 0% | 0% | 0% |
| Hispanic | 0% | 0% | 0% |
| Black | 0% | 0% | 0% |
| American Indian and Alaskan Native | 0% | 0% | 0% |