Explore the Family Name D’alonzo
The meaning of D’alonzo
Italian (D’Alonzo): patronymic from Alonso, a variant of the personal name Alfonso. Some characteristic forenames: Italian Augustino, Domenic, Emelio, Fiore, Rocco, Romeo.
Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.
How common is the last name D’alonzo in the United States?
Based on the Decennial U.S. Census data, the surname D'Alonzo experienced a slight decrease in popularity between 2000 and 2010. The ranking of the surname D'Alonzo dropped by 4.44%, from 44,738 in 2000 to 46,725 in 2010. However, the actual count of individuals with this surname showed a small increase of 0.66%, growing from 452 people in 2000 to 455 in 2010. The proportion per 100k also fell by 11.76% over that time frame.
| 2000 | 2010 | Change | |
|---|---|---|---|
| Rank | #44,738 | #46,725 | -4.44% |
| Count | 452 | 455 | 0.66% |
| Proportion per 100k | 0.17 | 0.15 | -11.76% |
Race and Ethnicity of people with the last name D’alonzo
Regarding ethnicity, the Decennial U.S. Census data shows that nearly all individuals carrying the D'Alonzo surname identified as White, making up 97.57% in 2000 and slightly increasing to 97.58% in 2010. While a very small percentage (1.77%) reported having two or more ethnic identities in the year 2000, there were no such reports in the 2010 census. There were no recorded instances of those with the D'Alonzo surname identifying as Asian/Pacific Islander, Hispanic, Black, or American Indian and Alaskan Native in either 2000 or 2010.
| 2000 | 2010 | Change | |
|---|---|---|---|
| White | 97.57% | 97.58% | 0.01% |
| Asian/Pacific Islander | 0% | 0% | 0% |
| Two or More Races | 1.77% | 0% | 0% |
| Hispanic | 0% | 0% | 0% |
| Black | 0% | 0% | 0% |
| American Indian and Alaskan Native | 0% | 0% | 0% |