Explore the Family Name Kosack

The meaning of Kosack

1. Germanized or Americanized form of Polish, Sorbian, Jewish, and Slovenian Kozak or Kózak, Czech, Slovak, and Hungarian Kozák. 2. Americanized form of Polish and Sorbian Kosak or Kósak, Czech and Slovak Kosák.

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

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

Based on the Decennial U.S. Census data, the surname Kosack has seen a decrease in popularity between 2000 and 2010. The rank of this surname dropped from 78,838 in 2000 to 97,671 in 2010, marking a decrease of roughly 24%. The actual count of people with this surname also declined from 225 in 2000 to 186 in 2010, a decline of approximately 17%. The proportion per 100,000 people with the surname Kosack decreased by 25% over the same period.

20002010Change
Rank#78,838#97,671-23.89%
Count225186-17.33%
Proportion per 100k0.080.06-25%

Race and Ethnicity of people with the last name Kosack

As for the ethnic identity associated with the surname Kosack, the Decennial U.S. Census data reveals that there was a minor shift in the distribution between 2000 and 2010. The percentage of individuals identifying as White decreased slightly from 96.89% to 94.09%. At the same time, those identifying as Hispanic saw an increase from 2.67% to 4.84%. Despite these changes, no individuals with the surname Kosack identified as Asian/Pacific Islander, Black, or American Indian and Alaskan Native in either census year.

20002010Change
White96.89%94.09%-2.89%
Hispanic2.67%4.84%81.27%
Asian/Pacific Islander0%0%0%
Two or More Races0%0%0%
Black0%0%0%
American Indian and Alaskan Native0%0%0%