Explore the Family Name Rosiak
The meaning of Rosiak
Polish: patronymic from Rosa. Some characteristic forenames: Polish Ignatius, Janina, Marcin.
Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.
How common is the last name Rosiak in the United States?
The popularity of the surname Rosiak, according to data gathered from the Decennial U.S. Census, has experienced a slight decrease in recent years. In 2000, Rosiak was ranked as the 43,157th most popular surname, with 472 individuals recorded under this name. However, by 2010, the rank had dropped to 46,568 and the count decreased slightly to 457, marking a -3.18% change. The proportion of individuals named Rosiak per 100k also saw an 11.76% decrease over the decade.
| 2000 | 2010 | Change | |
|---|---|---|---|
| Rank | #43,157 | #46,568 | -7.9% |
| Count | 472 | 457 | -3.18% |
| Proportion per 100k | 0.17 | 0.15 | -11.76% |
Race and Ethnicity of people with the last name Rosiak
The ethnic identity associated with the surname Rosiak is predominantly White, as per the Decennial U.S. Census. In both 2000 and 2010, the overwhelming majority of those with the surname identified as White, at 97.25% and 96.06% respectively. There was a minimal increase in the number of individuals identifying as Hispanic (from 1.27% to 1.31%), and for the first time in 2010, a small fraction (1.31%) reported having two or more races. There were no individuals who identified as Asian/Pacific Islander, Black, or American Indian and Alaskan Native in either census year.
| 2000 | 2010 | Change | |
|---|---|---|---|
| White | 97.25% | 96.06% | -1.22% |
| Two or More Races | 0% | 1.31% | 0% |
| Hispanic | 1.27% | 1.31% | 3.15% |
| Asian/Pacific Islander | 0% | 0% | 0% |
| Black | 0% | 0% | 0% |
| American Indian and Alaskan Native | 0% | 0% | 0% |