Explore the Family Name Fennessey
The meaning of Fennessey
Irish: variant of Fennessy.
Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.
How common is the last name Fennessey in the United States?
Based on the Decennial U.S. Census data, the popularity of the surname Fennessey has seen a slight increase between 2000 and 2010. The rank of the surname moved from 42,677 in 2000 to a slightly more popular 41,234 in 2010, indicating a change of 3.38%. The count of individuals with this surname also increased during this decade, moving from 478 in 2000 to 528 in 2010, showing an increase of 10.46%. Despite these changes, the proportion of people with this surname per 100,000 remained constant at 0.18.
| 2000 | 2010 | Change | |
|---|---|---|---|
| Rank | #42,677 | #41,234 | 3.38% |
| Count | 478 | 528 | 10.46% |
| Proportion per 100k | 0.18 | 0.18 | 0% |
Race and Ethnicity of people with the last name Fennessey
The ethnic identity associated with the surname Fennessey, according to the Decennial U.S. Census data, is predominantly White. In 2000, approximately 95.82% of individuals with this surname identified as White, although this decreased slightly to 94.70% by 2010. During the same time period, there was a minimal increase in those identifying as Hispanic, from 2.09% to 2.84%. The data for 2010 also shows a small percentage (1.33%) of individuals with this surname identifying with two or more races. There were no recorded instances of this surname among those identifying as Asian/Pacific Islander, Black, or American Indian and Alaskan Native in either 2000 or 2010.
| 2000 | 2010 | Change | |
|---|---|---|---|
| White | 95.82% | 94.7% | -1.17% |
| Hispanic | 2.09% | 2.84% | 35.89% |
| Two or More Races | 0% | 1.33% | 0% |
| Asian/Pacific Islander | 0% | 0% | 0% |
| Black | 0% | 0% | 0% |
| American Indian and Alaskan Native | 0% | 0% | 0% |