Explore the Family Name Castellaw
The meaning of Castellaw
Scottish: habitational name from any of several places in southern Scotland named as Castle Law ‘castle hill’. The name has more or less died out in Scotland.
Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.
How common is the last name Castellaw in the United States?
According to the Decennial U.S. Census data, the surname Castellaw has seen a slight decrease in popularity from 2000 to 2010. In 2000, it was ranked 54,385 in terms of commonality amongst surnames, and by 2010 it dropped to rank 57,372. This represents a change of -5.49%. Despite this drop in rank, the actual count of individuals bearing the Castellaw name remained steady at 355 people for both census years. Consequently, the proportion of individuals with this surname per 100,000 people decreased by -7.69%.
| 2000 | 2010 | Change | |
|---|---|---|---|
| Rank | #54,385 | #57,372 | -5.49% |
| Count | 355 | 355 | 0% |
| Proportion per 100k | 0.13 | 0.12 | -7.69% |
Race and Ethnicity of people with the last name Castellaw
In terms of ethnicity, the Decennial U.S. Census data reveals that the vast majority of individuals with the surname Castellaw identify as White, accounting for 96.62% in 2000 and slightly decreasing to 95.49% in 2010. The percentage of those identifying as Hispanic or Two or More Races remained relatively small and stable over the decade. Notably, there was an emergence of Hispanics within this surname group, going from 0% in 2000 to 2.54% in 2010. There were no recorded instances of Castellaws identifying as Asian/Pacific Islander, Black, or American Indian and Alaskan Native during these years.
| 2000 | 2010 | Change | |
|---|---|---|---|
| White | 96.62% | 95.49% | -1.17% |
| Hispanic | 0% | 2.54% | 0% |
| Two or More Races | 1.41% | 1.41% | 0% |
| Asian/Pacific Islander | 0% | 0% | 0% |
| Black | 0% | 0% | 0% |
| American Indian and Alaskan Native | 0% | 0% | 0% |