Explore the Family Name Aldaz
The meaning of Aldaz
Basque: Castilianized form of Aldatz, a habitational name from either of two towns called Aldatz in the Basque Country, Spain, from Basque alde ‘side, slope’ + the suffix -tz(a) denoting abundance. Some characteristic forenames: Spanish Jose, Luis, Arturo, Claudio, Ines, Jesus, Jose Mario, Manuel, Miguel, Sergio, Alfonso, Alicia.
Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.
How common is the last name Aldaz in the United States?
Based on data from the Decennial U.S. Census, the surname Aldaz has seen a slight dip in popularity over the past decade. In 2000, it ranked as the 23,638th most common surname and by 2010, it fell slightly to the 24,112th spot. However, the overall count of individuals bearing this last name increased from 1,000 in 2000 to 1,044 in 2010, marking a growth rate of 4.4%. The proportion per 100,000 people saw a minor decrease of 5.41% during the same period.
| 2000 | 2010 | Change | |
|---|---|---|---|
| Rank | #23,638 | #24,112 | -2.01% |
| Count | 1,000 | 1,044 | 4.4% |
| Proportion per 100k | 0.37 | 0.35 | -5.41% |
Race and Ethnicity of people with the last name Aldaz
The Decennial U.S. Census also provides insight into the ethnic identity associated with the surname Aldaz. A significant majority of those with this last name, around 93.01% in 2010 (up from 92.6% in 2000), identify as Hispanic. The White category experienced a small increase, going from 5.8% in 2000 to 6.03% in 2010. Meanwhile, the presence of Black ethnicity among the Aldaz surname holders completely disappeared by 2010, down from 0.7% in 2000. There was a negligible presence of Asian/Pacific Islander ethnicity identified in 2010, which was not present in 2000. No changes were noted for those identifying with two or more races or as American Indian and Alaskan Native.
| 2000 | 2010 | Change | |
|---|---|---|---|
| Hispanic | 92.6% | 93.01% | 0.44% |
| White | 5.8% | 6.03% | 3.97% |
| Asian/Pacific Islander | 0% | 0.48% | 0% |
| Two or More Races | 0% | 0% | 0% |
| Black | 0.7% | 0% | -100% |
| American Indian and Alaskan Native | 0% | 0% | 0% |