Explore the Family Name Kotlarz
The meaning of Kotlarz
Polish; Rusyn and Jewish (from Poland): occupational name for a boiler maker or coppersmith, Polish kotlarz, Rusyn kotlyar. Compare Kotlar and Kotlyar. Some characteristic forenames: Polish Mieczyslaw, Ryszard, Witold.
Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.
How common is the last name Kotlarz in the United States?
Based on the data from the Decennial U.S. Census, the popularity of the surname Kotlarz has slightly decreased in ranking from 2000 to 2010, moving from 45,308 to 46,404, a change of -2.42 percent. However, the count of individuals with this surname increased over the same period from 445 to 459, a growth of 3.15 percent. The proportion of people with this surname per 100,000 population remained constant at 0.16.
| 2000 | 2010 | Change | |
|---|---|---|---|
| Rank | #45,308 | #46,404 | -2.42% |
| Count | 445 | 459 | 3.15% |
| Proportion per 100k | 0.16 | 0.16 | 0% |
Race and Ethnicity of people with the last name Kotlarz
Regarding ethnicity as shown by the Decennial U.S. Census, the majority of individuals with the surname Kotlarz identified as White, and this percentage increased from 95.28 to 97.17 between 2000 and 2010. The percentage identifying as Hispanic saw a significant decrease from 3.15 to 1.09 during this time. A small percentage of individuals identified as being of two or more races, although this also decreased slightly from 1.35 to 1.09. There were no reported instances of individuals with this surname identifying as Asian/Pacific Islander, Black, or American Indian and Alaskan Native.
| 2000 | 2010 | Change | |
|---|---|---|---|
| White | 95.28% | 97.17% | 1.98% |
| Two or More Races | 1.35% | 1.09% | -19.26% |
| Hispanic | 3.15% | 1.09% | -65.4% |
| Asian/Pacific Islander | 0% | 0% | 0% |
| Black | 0% | 0% | 0% |
| American Indian and Alaskan Native | 0% | 0% | 0% |