Explore the Family Name Koy
The meaning of Koy
German: unexplained. Some characteristic forenames: German Ernst, Kuno.
Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.
How common is the last name Koy in the United States?
Based on the Decennial U.S. Census, the surname Koy has seen a rise in popularity over the last decade. In 2000, it was ranked 42056th, but by 2010 it had climbed to 38902nd, a rise of 7.5%. The count of individuals with this surname also rose during this period from 486 to 567, representing a significant increase of 16.67%. Consequently, the proportion of people named Koy per 100k inhabitants also went up slightly from 0.18 to 0.19, an increase of 5.56%.
| 2000 | 2010 | Change | |
|---|---|---|---|
| Rank | #42,056 | #38,902 | 7.5% |
| Count | 486 | 567 | 16.67% |
| Proportion per 100k | 0.18 | 0.19 | 5.56% |
Race and Ethnicity of people with the last name Koy
The Decennial U.S. Census also provides insights into the ethnic identity associated with the surname Koy. Predominantly associated with Asian/Pacific Islander and White ethnicities in 2000, there have been some changes over the decade. By 2010, there was a notable increase in the percentage of Asian/Pacific Islanders, rising from 45.27% to 52.56%, a growth of 16.1%. However, the representation of Whites dropped from 47.33% to 39.68%, a decrease of 16.16%. The percentage of individuals identifying as two or more races also diminished, dropping 35.68%. On the other hand, representation among the Black community increased from 2.26% to 3.70%, a 63.72% rise. There were no reported instances of Hispanic or American Indian and Alaskan Native affiliations in either year.
| 2000 | 2010 | Change | |
|---|---|---|---|
| Asian/Pacific Islander | 45.27% | 52.56% | 16.1% |
| White | 47.33% | 39.68% | -16.16% |
| Black | 2.26% | 3.7% | 63.72% |
| Two or More Races | 4.12% | 2.65% | -35.68% |
| Hispanic | 0% | 0% | 0% |
| American Indian and Alaskan Native | 0% | 0% | 0% |