Explore the Family Name Fennelly
The meaning of Fennelly
Irish: variant of Fennell 2, from the earlier Gaelic form of the genitive Ó Fionnghaile or Ó Fionnghalaigh. Some characteristic forenames: Irish Kieran.
Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.
How common is the last name Fennelly in the United States?
Based on the Decennial U.S. Census, the popularity of the surname Fennelly has seen a significant decline over the past decade. In 2000, it ranked 22,403 in terms of prevalence but dropped to 31,790 by 2010 — a decrease of 41.9%. The actual count of individuals bearing the surname also decreased from 1,072 in 2000 to just 726 in 2010, marking a 32.28% drop. Consequently, the proportion per 100,000 people also fell by 37.5% during this period.
| 2000 | 2010 | Change | |
|---|---|---|---|
| Rank | #22,403 | #31,790 | -41.9% |
| Count | 1,072 | 726 | -32.28% |
| Proportion per 100k | 0.4 | 0.25 | -37.5% |
Race and Ethnicity of people with the last name Fennelly
The ethnicity associated with the surname Fennelly has also shifted slightly from 2000 to 2010 according to the Decennial U.S. Census. A majority (95.32%) of people with this surname identified as White in 2010, a slight decrease from 96.92% in 2000. Meanwhile, the percentage identifying as Hispanic saw an increase of 30.95% over the same period. Notably, there was no data available for individuals who identify as Asian/Pacific Islander in 2010, and those identifying as Black or American Indian and Alaskan Native remained minimal. The group indicating two or more ethnic identities experienced the most substantial increase, more than doubling from 0.75% in 2000 to 1.52% in 2010.
| 2000 | 2010 | Change | |
|---|---|---|---|
| White | 96.92% | 95.32% | -1.65% |
| Hispanic | 1.68% | 2.2% | 30.95% |
| Two or More Races | 0.75% | 1.52% | 102.67% |
| Black | 0% | 0.69% | 0% |
| Asian/Pacific Islander | 0.47% | 0% | 0% |
| American Indian and Alaskan Native | 0% | 0% | 0% |