Explore the Family Name Keirnan
The meaning of Keirnan
Irish: shortened Anglicized form of Gaelic Mac Thighearnáin, a patronymic from a lenited diminutive of the personal name Tighearnán ‘lord, master’ (Old Irish tigern).
Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.
How common is the last name Keirnan in the United States?
Based on the Decennial U.S. Census data, the popularity of the surname Keirnan experienced a slight decline between 2000 and 2010. In 2000, it was the 114,852nd most popular surname in the United States with 141 recorded instances. Ten years later, it dropped to the 124,548th rank, despite the count only reducing slightly to 138. The proportion per 100,000 people remained consistent at 0.05 over this decade.
| 2000 | 2010 | Change | |
|---|---|---|---|
| Rank | #114,852 | #124,548 | -8.44% |
| Count | 141 | 138 | -2.13% |
| Proportion per 100k | 0.05 | 0.05 | 0% |
Race and Ethnicity of people with the last name Keirnan
Turning to ethnicity data from the Decennial U.S. Census, the majority of individuals with the Keirnan surname identified as White in both 2000 and 2010. In 2000, 93.62% of the people with this surname identified as white, and this percentage grew to 94.93% by 2010. There were no recorded instances of this surname among those identifying as Asian/Pacific Islander, Black, Hispanic, American Indian and Alaskan Native or those claiming two or more ethnicities.
| 2000 | 2010 | Change | |
|---|---|---|---|
| White | 93.62% | 94.93% | 1.4% |
| Asian/Pacific Islander | 0% | 0% | 0% |
| Two or More Races | 0% | 0% | 0% |
| Hispanic | 0% | 0% | 0% |
| Black | 0% | 0% | 0% |
| American Indian and Alaskan Native | 0% | 0% | 0% |