Explore the Family Name O’mary
The meaning of O’mary
Probably an altered form of Irish O’Mara, influenced by the cult of the Virgin Mary.
Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.
How common is the last name O’mary in the United States?
Based on the Decennial U.S. Census data, the surname O’Mary saw a slight dip in popularity between 2000 and 2010. In 2000, the surname ranked 38,890th in popularity with a count of 534 individuals carrying it. By 2010, the surname's rank had slightly dropped to 38,948 and the count of individuals with this name increased by approximately 6% to 566. However, the proportion of individuals with this surname per 100,000 people decreased by 5%.
| 2000 | 2010 | Change | |
|---|---|---|---|
| Rank | #38,890 | #38,948 | -0.15% |
| Count | 534 | 566 | 5.99% |
| Proportion per 100k | 0.2 | 0.19 | -5% |
Race and Ethnicity of people with the last name O’mary
The ethnicity associated with the surname O'Mary also shifted within the same decade according to the Decennial U.S. Census data. The number of individuals identifying as White and carrying the O'Mary surname increased from 86.89% in 2000 to 90.64% in 2010. Those who identified their ethnicity as part of two or more races decreased significantly from 6.55% to 3.00%. The percentage of Hispanic individuals with this surname also declined from 4.31% to 3.89%. Interestingly, there was an emergence of individuals identifying as Black by 2010, whereas no such record existed in 2000. During the same period, the count of American Indian and Alaskan Natives with this surname fell to zero.
| 2000 | 2010 | Change | |
|---|---|---|---|
| White | 86.89% | 90.64% | 4.32% |
| Hispanic | 4.31% | 3.89% | -9.74% |
| Two or More Races | 6.55% | 3% | -54.2% |
| Black | 0% | 1.06% | 0% |
| Asian/Pacific Islander | 0% | 0% | 0% |
| American Indian and Alaskan Native | 1.12% | 0% | 0% |