Explore the Family Name Koslosky

The meaning of Koslosky

Variant of Kosloski, a surname of Polish, Jewish, Ukrainian, or Russian origin.

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

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

The surname Koslosky has seen a decrease in its frequency in the United States over the last decade, as per the Decennial U.S. Census data. In 2000, it held rank 35,797 in terms of popularity among all surnames, slipping to rank 38,640 by 2010, a change of -7.94%. The count of individuals with this surname also fell from 593 in 2000 to 572 in 2010, marking a decline of -3.54%. The proportion of Kosloskys per 100,000 people also dropped by -13.64%, from 0.22 to 0.19.

20002010Change
Rank#35,797#38,640-7.94%
Count593572-3.54%
Proportion per 100k0.220.19-13.64%

Race and Ethnicity of people with the last name Koslosky

In terms of ethnicity, the Decennial U.S. Census data reveals that the vast majority of individuals carrying the Koslosky surname identify as White, with this group making up 97.03% of all Kosloskys in 2010, down slightly from 97.64% in 2000. The next most common ethnic identity is Hispanic, accounting for 0.87% of Kosloskys in 2010, a reduction from 1.01% in 2000. A small percentage of individuals with this surname identify as Asian/Pacific Islander or as having two or more races, with these groups seeing increases from 0% and 0.84% respectively in 2000 to 1.05% and 0.87% in 2010. There were no individuals who identified as Black or American Indian and Alaskan Native in either year.

20002010Change
White97.64%97.03%-0.62%
Asian/Pacific Islander0%1.05%0%
Two or More Races0.84%0.87%3.57%
Hispanic1.01%0.87%-13.86%
Black0%0%0%
American Indian and Alaskan Native0%0%0%