Explore the Family Name Kostoff
The meaning of Kostoff
Westernized form of Bulgarian and Macedonian Kostov.
Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.
How common is the last name Kostoff in the United States?
Based on the Decennial U.S. Census data, the popularity of the surname "Kostoff" slightly decreased between 2000 and 2010. In 2000, it ranked 47,210th in popularity but dropped to 48,347th by 2010, representing a decline of 2.41%. Despite this, the count or number of people with the surname increased from 423 to 437 during the same period, marking a growth of 3.31%. However, when viewed as a proportion per 100,000 people, the presence of the Kostoff surname fell by 6.25%.
| 2000 | 2010 | Change | |
|---|---|---|---|
| Rank | #47,210 | #48,347 | -2.41% |
| Count | 423 | 437 | 3.31% |
| Proportion per 100k | 0.16 | 0.15 | -6.25% |
Race and Ethnicity of people with the last name Kostoff
Regarding ethnicity, the Decennial U.S. Census data shows that the vast majority of individuals with the surname "Kostoff" identified as White in both 2000 and 2010. The data reveals 98.35% identified as such in 2000, and 97.71% in 2010, indicating a slight decrease of 0.65%. There was no record of individuals identifying as Asian/Pacific Islander, being of two or more races, Hispanic, Black, or American Indian and Alaskan Native in 2000. However, in 2010, there was a small fraction (data suppressed for privacy) that identified as Black.
| 2000 | 2010 | Change | |
|---|---|---|---|
| White | 98.35% | 97.71% | -0.65% |
| Asian/Pacific Islander | 0% | 0% | 0% |
| Two or More Races | 0% | 0% | 0% |
| Hispanic | 0% | 0% | 0% |
| Black | 0% | 0% | 0% |
| American Indian and Alaskan Native | 0% | 0% | 0% |