Explore the Family Name Costillo
The meaning of Costillo
Spanish: unexplained. This name is found in Extremadura (Badajoz) and western Andalusia.
Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.
How common is the last name Costillo in the United States?
The popularity of the surname Costillo has seen a significant rise according to data from the Decennial U.S. Census. In 2000, Costillo ranked 35,797 in terms of commonality among surnames, but by 2010 it had climbed to rank 30,013 reflecting a 16.16% change. The number of individuals bearing the Costillo surname also jumped from 593 in 2000 to 782 in 2010, an increase of 31.87%. Consequently, the proportion of the population with this surname per 100,000 people went from 0.22 to 0.27, marking a 22.73% increase.
| 2000 | 2010 | Change | |
|---|---|---|---|
| Rank | #35,797 | #30,013 | 16.16% |
| Count | 593 | 782 | 31.87% |
| Proportion per 100k | 0.22 | 0.27 | 22.73% |
Race and Ethnicity of people with the last name Costillo
Looking at the ethnic identity associated with the surname Costillo based on the Decennial U.S. Census, there have been some shifts between 2000 and 2010. The percentage of those identifying as Hispanic increased from 70.15% to 82.61%, indicating a 17.76% change. However, there was a decrease in the percentage of people with this surname who identified as White (from 20.74% to 11.13%) and American Indian and Alaskan Native (from 4.38% to 1.79%). There was also a slight count of those identifying as Black and Two or more races in 2010, while no such data existed in 2000. The Asian/Pacific Islander group experienced a decrease of 24.04%, going from 3.37% to 2.56%.
| 2000 | 2010 | Change | |
|---|---|---|---|
| Hispanic | 70.15% | 82.61% | 17.76% |
| White | 20.74% | 11.13% | -46.34% |
| Asian/Pacific Islander | 3.37% | 2.56% | -24.04% |
| American Indian and Alaskan Native | 4.38% | 1.79% | -59.13% |
| Two or More Races | 0% | 1.02% | 0% |
| Black | 0% | 0.9% | 0% |