Explore the Family Name Kolacki
The meaning of Kolacki
Polish (Kołacki): habitational name for someone from a place called Kołaty, Kołacin, or Kołacinek (see Kolak).
Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.
How common is the last name Kolacki in the United States?
The popularity of the surname Kolacki, as per data from the Decennial U.S. Census, has seen a slight dip between 2000 and 2010. In 2000, it held the rank of 71,610 in terms of commonality, but by 2010, it had dropped to a rank of 77,264, indicating a change of -7.9%. The count of people with the Kolacki surname also showed a minor decline from 254 in 2000 to 248 in 2010, a decrease of about 2.36%. Consequently, the proportion of this surname per 100k population also fell by 11.11% during this period.
| 2000 | 2010 | Change | |
|---|---|---|---|
| Rank | #71,610 | #77,264 | -7.9% |
| Count | 254 | 248 | -2.36% |
| Proportion per 100k | 0.09 | 0.08 | -11.11% |
Race and Ethnicity of people with the last name Kolacki
Speaking of the ethnic identity associated with the Kolacki surname according to the Decennial U.S. Census, there were some changes noted between 2000 and 2010. While the majority identified as White (98.03% in 2000 and 95.16% in 2010), there was a small shift towards more racial diversity over the decade. Specifically, there was an emergence of individuals identifying as belonging to two or more races, accounting for 2.82% in 2010, up from zero in 2000. However, no Kolackis were reported as identifying as Asian/Pacific Islander, Hispanic, Black, or American Indian and Alaskan Native in either of these years.
| 2000 | 2010 | Change | |
|---|---|---|---|
| White | 98.03% | 95.16% | -2.93% |
| Two or More Races | 0% | 2.82% | 0% |
| Asian/Pacific Islander | 0% | 0% | 0% |
| Hispanic | 0% | 0% | 0% |
| Black | 0% | 0% | 0% |
| American Indian and Alaskan Native | 0% | 0% | 0% |