Explore the Family Name Kilcoyne
The meaning of Kilcoyne
Irish (Mayo and Sligo): Anglicized form of Gaelic Mac Giolla Chaoine ‘son of the servant (i.e. devotee) of Saint Caoin’ or from Mac Giolla Chaoin ‘son of the gentle lad’. Caoine ‘gentleness’ being a personal name from the adjective caoin meaning ‘gentle’. There was a female Saint Cainne alias Caoine in Meath. Some characteristic forenames: Irish Brendan, Aidan.
Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.
How common is the last name Kilcoyne in the United States?
Based on the Decennial U.S. Census data, the surname Kilcoyne has seen a slight increase in popularity from 2000 to 2010. In 2000, Kilcoyne was ranked 20,180, but it climbed to 20,172 by 2010. This is a modest change of 0.04 in ranking. The count of individuals with this surname also increased over this decade, going from 1,228 in 2000 to 1,322 in 2010, marking a 7.65% growth. However, its proportion per 100,000 people slightly decreased by 2.17%, from 0.46 in 2000 to 0.45 in 2010.
| 2000 | 2010 | Change | |
|---|---|---|---|
| Rank | #20,180 | #20,172 | 0.04% |
| Count | 1,228 | 1,322 | 7.65% |
| Proportion per 100k | 0.46 | 0.45 | -2.17% |
Race and Ethnicity of people with the last name Kilcoyne
Ethnically, the Kilcoyne surname is predominantly associated with the white ethnicity, according to the Decennial U.S. Census data. In 2000, 97.48% of people with this last name identified as white, although this figure slightly dropped to 96.90% in 2010. The Hispanic representation among those with the Kilcoyne surname saw a substantial increase of 31.88%, moving from 1.38% in 2000 to 1.82% in 2010. Interestingly, there was no recorded Asian/Pacific Islander, Black, or American Indian and Alaskan Native ethnic identities under this surname in 2000, though by 2010, the American Indian and Alaskan Native category showed a 0.61% presence. The percentage of people identifying with two or more races also rose, from 0.49% in 2000 to 0.53% in 2010.
| 2000 | 2010 | Change | |
|---|---|---|---|
| White | 97.48% | 96.9% | -0.59% |
| Hispanic | 1.38% | 1.82% | 31.88% |
| American Indian and Alaskan Native | 0% | 0.61% | 0% |
| Two or More Races | 0.49% | 0.53% | 8.16% |
| Asian/Pacific Islander | 0% | 0% | 0% |
| Black | 0% | 0% | 0% |