Explore the Family Name Gillihan
The meaning of Gillihan
Irish: variant of Gilligan.
Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.
How common is the last name Gillihan in the United States?
According to the Decennial U.S. Census data, the popularity of the surname Gillihan has seen a slight decrease in the United States from 2000 to 2010. In 2000, Gillihan was ranked 20,629th most popular surname with a count of 1,193 individuals. By 2010, however, the ranking had slipped to 22,056 with a count of 1,175 individuals, marking a change of -6.92 and -1.51 respectively. The proportion of people with this surname per 100,000 also fell by 9.09 during this period.
| 2000 | 2010 | Change | |
|---|---|---|---|
| Rank | #20,629 | #22,056 | -6.92% |
| Count | 1,193 | 1,175 | -1.51% |
| Proportion per 100k | 0.44 | 0.4 | -9.09% |
Race and Ethnicity of people with the last name Gillihan
The ethnicity data from the Decennial U.S. Census demonstrates shifts in the ethnic identities associated with the surname Gillihan between 2000 and 2010. Individuals identifying as white made up the vast majority of carriers of the surname, although their percentage dropped slightly from 96.81% in 2000 to 95.83% in 2010. Meanwhile, those identifying as Hispanic saw an increase from 1.26% to 2.3%. People claiming two or more ethnic identities also increased substantially, from 0.75% to 1.28%. However, there were no reported individuals with the surname Gillihan who identified as Asian/Pacific Islander, Black, or American Indian and Alaskan Native during these years.
| 2000 | 2010 | Change | |
|---|---|---|---|
| White | 96.81% | 95.83% | -1.01% |
| Hispanic | 1.26% | 2.3% | 82.54% |
| Two or More Races | 0.75% | 1.28% | 70.67% |
| Asian/Pacific Islander | 0% | 0% | 0% |
| Black | 0% | 0% | 0% |
| American Indian and Alaskan Native | 0.84% | 0% | 0% |