Explore the Family Name Kooy

The meaning of Kooy

Dutch: variant of Kooi.

Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.

How common is the last name Kooy in the United States?

Based on the Decennial U.S. Census, the surname Kooy exhibited a marginal increase in popularity between 2000 and 2010. In 2000, it ranked 44,192 and improved slightly to 44,109 by 2010, representing a change of 0.19. The count of people with this surname also grew from 459 in 2000 to 488 in 2010, an increase of 6.32%, despite the proportion per 100,000 remaining steady at 0.17.

20002010Change
Rank#44,192#44,1090.19%
Count4594886.32%
Proportion per 100k0.170.170%

Race and Ethnicity of people with the last name Kooy

In terms of ethnicity, the data from the Decennial U.S. Census showed a slight shift for the surname Kooy from 2000 to 2010. Although the majority (95.70%) identified as White in 2010, this was a small decrease from 2000 when 97.39% did. Interestingly, there were no reported individuals identifying as Asian/Pacific Islander or Hispanic with the Kooy surname in 2000, but by 2010, these groups represented 1.84% and 1.02% respectively. No changes were noted in the categories of Black, American Indian and Alaskan Native, or those identifying with two or more races.

20002010Change
White97.39%95.7%-1.74%
Asian/Pacific Islander0%1.84%0%
Hispanic0%1.02%0%
Two or More Races0%0%0%
Black0%0%0%
American Indian and Alaskan Native0%0%0%