Explore the Family Name Castrillo
The meaning of Castrillo
Spanish: habitational name from any of various places, especially in León, named Castrillo, from castrillo ‘fort’, a diminutive of Castro. Some characteristic forenames: Spanish Jose, Manuel, Jorge, Angel, Carlos, Emilio, Guillermo, Ramon, Alberto, Alejandro, Ana, Benito.
Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.
How common is the last name Castrillo in the United States?
Based on the Decennial U.S. Census data, the surname Castrillo has seen a rise in popularity between 2000 and 2010. In 2000, it ranked 29,516 in popularity, but by 2010, it had climbed to 24,483 — an improvement of around 17.05 percent. The number of individuals carrying the Castrillo surname increased from 754 in 2000 to 1,022 in 2010, representing a growth rate of 35.54 percent. The proportion of people with this surname per 100,000 also rose by 25 percent over this decade.
| 2000 | 2010 | Change | |
|---|---|---|---|
| Rank | #29,516 | #24,483 | 17.05% |
| Count | 754 | 1,022 | 35.54% |
| Proportion per 100k | 0.28 | 0.35 | 25% |
Race and Ethnicity of people with the last name Castrillo
The Decennial U.S. Census data also provides insights into the ethnic identity associated with the surname Castrillo. The majority identified as Hispanic, accounting for 83.42 percent in 2000 and increasing slightly to 85.03 percent in 2010. Those identifying as White made up 10.48 percent in 2000, dipping slightly to 10.08 percent in 2010. The percentage of individuals identifying as Asian/Pacific Islander saw a slight increase from 4.11 percent in 2000 to 4.31 percent in 2010. However, those identifying as Black decreased from 0.66 percent to 0.49 percent during the same period. There was no data available for those identifying as American Indian and Alaskan Native or as two or more races in 2010.
| 2000 | 2010 | Change | |
|---|---|---|---|
| Hispanic | 83.42% | 85.03% | 1.93% |
| White | 10.48% | 10.08% | -3.82% |
| Asian/Pacific Islander | 4.11% | 4.31% | 4.87% |
| Black | 0.66% | 0.49% | -25.76% |
| Two or More Races | 1.33% | 0% | 0% |
| American Indian and Alaskan Native | 0% | 0% | 0% |