Explore the Family Name Granahan
The meaning of Granahan
Irish (Mayo): shortened form of McGranahan, an Anglicized form of Irish Gaelic Mac Reannacháin ‘son of Reannachán’. Some characteristic forenames: Irish Brendan.
Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.
How common is the last name Granahan in the United States?
Based on the Decennial U.S. Census data, the surname Granahan has seen a slight shift in popularity between 2000 and 2010. In the year 2000, Granahan was ranked 39,499th in popularity, but by 2010 it had slipped to 41,038th, reflecting a decrease of approximately 3.9%. However, the total count of people bearing the name Granahan increased from 524 in 2000 to 531 in 2010, an increment of about 1.34%. The proportion of individuals with this surname per 100,000 people also experienced a decrease of 5.26% over the same period.
| 2000 | 2010 | Change | |
|---|---|---|---|
| Rank | #39,499 | #41,038 | -3.9% |
| Count | 524 | 531 | 1.34% |
| Proportion per 100k | 0.19 | 0.18 | -5.26% |
Race and Ethnicity of people with the last name Granahan
The Decennial U.S. Census data pertaining to ethnicity reveals that the majority of individuals named Granahan identified as White in both 2000 and 2010, with a slight decrease in this group from 98.28% to 98.12%. Individuals identifying as belonging to two or more ethnicities made up less than 1% of those with the surname Granahan in both years, with a marginal decline from 0.95% to 0.94%. No individuals with this surname identified as Asian/Pacific Islander, Hispanic, Black, or American Indian and Alaskan Native for either census year.
| 2000 | 2010 | Change | |
|---|---|---|---|
| White | 98.28% | 98.12% | -0.16% |
| Two or More Races | 0.95% | 0.94% | -1.05% |
| Asian/Pacific Islander | 0% | 0% | 0% |
| Hispanic | 0% | 0% | 0% |
| Black | 0% | 0% | 0% |
| American Indian and Alaskan Native | 0% | 0% | 0% |