Explore the Family Name Cosgriff
The meaning of Cosgriff
Irish: variant of Cosgrove.
Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.
How common is the last name Cosgriff in the United States?
Based on the Decennial U.S. Census, the surname Cosgriff has seen a slight decrease in popularity between 2000 and 2010. In 2000, the surname was ranked 38,320th in popularity with a count of 543 individuals bearing the name. However, by 2010, it had dropped to 40,494th in rank, with only 540 individuals identified with the surname. This represents a decrease of 5.67 in ranking and a minimal -0.55 change in the count.
| 2000 | 2010 | Change | |
|---|---|---|---|
| Rank | #38,320 | #40,494 | -5.67% |
| Count | 543 | 540 | -0.55% |
| Proportion per 100k | 0.2 | 0.18 | -10% |
Race and Ethnicity of people with the last name Cosgriff
The ethnicity associated with the surname Cosgriff also saw some shifts over the same decade according to the Decennial U.S. Census data. In 2000, the majority of bearers of the surname were identified as White, at 97.05 percent. By 2010, this percentage had decreased slightly to 95.00. While there were no individuals who identified as Hispanic or from two or more races in 2000, by 2010 these categories represented 1.30 and 2.22 percent of the Cosgriff population respectively. The Asian/Pacific Islander proportion went from 1.29 percent in 2000 to zero by 2010. There were no individuals identified as Black or American Indian and Alaskan Native in either year.
| 2000 | 2010 | Change | |
|---|---|---|---|
| White | 97.05% | 95% | -2.11% |
| Two or More Races | 0% | 2.22% | 0% |
| Hispanic | 0% | 1.3% | 0% |
| Asian/Pacific Islander | 1.29% | 0% | 0% |
| Black | 0% | 0% | 0% |
| American Indian and Alaskan Native | 0% | 0% | 0% |