Explore the Family Name Kolacz
The meaning of Kolacz
Polish (Kołacz): from kołacz ‘wedding cake’, presumably a metonymic occupational name for a patissier or confectioner. Some characteristic forenames: Polish Arkadiusz, Jerzy, Piotr, Szczepan.
Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.
How common is the last name Kolacz in the United States?
According to data from the Decennial U.S. Census, the surname Kolacz has grown in popularity between 2000 and 2010. In 2000, Kolacz ranked as the 62,577th most common surname in the United States, but by 2010 it had climbed to become the 60,347th most popular, marking an increase of 3.56%. During this same period, the count of individuals with the surname Kolacz also rose from 299 to 334, a growth rate of 11.71%. Despite these changes, the proportion per 100k population remained steady at 0.11.
| 2000 | 2010 | Change | |
|---|---|---|---|
| Rank | #62,577 | #60,347 | 3.56% |
| Count | 299 | 334 | 11.71% |
| Proportion per 100k | 0.11 | 0.11 | 0% |
Race and Ethnicity of people with the last name Kolacz
In terms of ethnic identity, the Decennial U.S. Census data reveals that the majority of individuals with the surname Kolacz identify as White, with proportions of 97.66% in 2000 and 97.60% in 2010. There was a slight decrease in this proportion over the decade, but the change was minimal at -0.06%. In 2000, 1.67% identified as Hispanic, but this category was not represented in the 2010 data. The category of two or more races appeared in the 2010 data with 1.50%, while categories such as Asian/Pacific Islander, Black, and American Indian and Alaskan Native were not represented in either years' data.
| 2000 | 2010 | Change | |
|---|---|---|---|
| White | 97.66% | 97.6% | -0.06% |
| Two or More Races | 0% | 1.5% | 0% |
| Asian/Pacific Islander | 0% | 0% | 0% |
| Hispanic | 1.67% | 0% | 0% |
| Black | 0% | 0% | 0% |
| American Indian and Alaskan Native | 0% | 0% | 0% |