Explore the Family Name Moriarity
The meaning of Moriarity
Irish: variant of Moriarty. This form of the surname is rare in Britain and Ireland. Some characteristic forenames: Irish Brendan.
Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.
How common is the last name Moriarity in the United States?
Based on the Decennial U.S. Census data, the surname Moriarity has seen a decrease in popularity between 2000 and 2010. The rank of this surname dropped from 18,870 in 2000 to 20,937 in 2010, a decrease of nearly 11%. Similarly, the count or number of times this surname was recorded also decreased over this decade, from 1,340 to 1,258, a decline of approximately 6.12%. Consequently, the proportion of the Moriarity surname per 100k individuals declined by 14% over this period.
| 2000 | 2010 | Change | |
|---|---|---|---|
| Rank | #18,870 | #20,937 | -10.95% |
| Count | 1,340 | 1,258 | -6.12% |
| Proportion per 100k | 0.5 | 0.43 | -14% |
Race and Ethnicity of people with the last name Moriarity
As for the ethnicity associated with the Moriarity surname, the Decennial U.S. Census data shows it is predominantly linked to the White demographic. In 2000, about 95.30% of people with this surname were identified as White, and this percentage slightly increased to 95.63% by 2010. Notably, there was a significant increase in the Hispanic demographic, which grew by 42.54%, albeit from a small base of 1.34% in 2000. Meanwhile, the proportions of Asian/Pacific Islander and those of two or more races saw decreases of 25.77% and 9.40% respectively. There were no individuals identified as Black, American Indian, or Alaskan Native within this surname group during both censuses.
| 2000 | 2010 | Change | |
|---|---|---|---|
| White | 95.3% | 95.63% | 0.35% |
| Hispanic | 1.34% | 1.91% | 42.54% |
| Two or More Races | 1.49% | 1.35% | -9.4% |
| Asian/Pacific Islander | 0.97% | 0.72% | -25.77% |
| Black | 0% | 0% | 0% |
| American Indian and Alaskan Native | 0% | 0% | 0% |