Explore the Family Name Aldaco

The meaning of Aldaco

Basque: Castilianized form of Aldako, a topographic name from alde ‘side, slope’ + the locative suffix -ko. Some characteristic forenames: Spanish Jose, Juan, Alfredo, Carlos, Jesus, Manuel, Natividad, Pedro, Rafael, Raynaldo, Agripino, Alejandro.

Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.

How common is the last name Aldaco in the United States?

Based on the Decennial U.S. Census data, the popularity of the surname Aldaco has notably increased between 2000 and 2010. In 2000, Aldaco was ranked as the 12,986th most popular surname in the United States, while in 2010 it climbed to be the 10,797th. This is a significant leap of 16.86% over the decade. The total count of individuals bearing the surname also swelled from 2,164 in 2000 to 2,953 in 2010, marking a growth of 36.46%. Furthermore, the proportion of people with the surname Aldaco per 100,000 increased by 25% over this period.

20002010Change
Rank#12,986#10,79716.86%
Count2,1642,95336.46%
Proportion per 100k0.8125%

Race and Ethnicity of people with the last name Aldaco

Regarding ethnic identity, the Decennial U.S. Census data reveals that the vast majority of individuals with the surname Aldaco identified as Hispanic. In 2000, this group accounted for 93.58% of all Aldacos, and this percentage rose slightly to 95.43% in 2010. Notable changes were also observed in other ethnic groups. For instance, the proportion of Aldacos identifying as White declined from 4.99% in 2000 to 4.06% in 2010. Additionally, there was an emergence of Black individuals identifying with the surname Aldaco in 2010, where none had been recorded in 2000. Conversely, those identifying as American Indian and Alaskan Native decreased by 56.36%, and there was no representation among Asian/Pacific Islanders in either year.

20002010Change
Hispanic93.58%95.43%1.98%
White4.99%4.06%-18.64%
American Indian and Alaskan Native0.55%0.24%-56.36%
Black0%0.2%0%
Asian/Pacific Islander0%0%0%
Two or More Races0.37%0%0%