Explore the Family Name Kosiorek
The meaning of Kosiorek
Polish: nickname from a pet form of Kosior. Some characteristic forenames: Polish Alicja, Kazimierz, Wladyslaw. German Florian.
Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.
How common is the last name Kosiorek in the United States?
Based on the Decennial U.S. Census, the popularity of the surname Kosiorek has slightly decreased over the years. In 2000, it was ranked 56,526 in terms of popularity, dropping slightly to 56,588 by 2010, a change of -0.11. The count of individuals bearing this surname, however, increased from 338 to 361, representing a growth rate of 6.8%. Similarly, there was a slight decrease in the proportion per 100,000 people, moving from 0.13 in 2000 to 0.12 in 2010.
| 2000 | 2010 | Change | |
|---|---|---|---|
| Rank | #56,526 | #56,588 | -0.11% |
| Count | 338 | 361 | 6.8% |
| Proportion per 100k | 0.13 | 0.12 | -7.69% |
Race and Ethnicity of people with the last name Kosiorek
Regarding ethnicity, the Decennial U.S. Census data shows that the majority of individuals with the surname Kosiorek identify as White. In 2000, this percentage stood at 97.63% and rose to 99.17% by 2010, a change of 1.58%. There were no recorded instances of individuals identifying as Asian/Pacific Islander, Black, Hispanic, or American Indian and Alaskan Native for either year. Likewise, there were no known instances of individuals identifying as belonging to two or more races.
| 2000 | 2010 | Change | |
|---|---|---|---|
| White | 97.63% | 99.17% | 1.58% |
| 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% |