Explore the Family Name Siwiec

The meaning of Siwiec

Polish: derivative of siwy ‘gray’.

Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.

How common is the last name Siwiec in the United States?

Based on the Decennial U.S. Census data, the surname Siwiec has seen a growth in popularity. The rank of this surname increased from 66,476 in 2000 to 63,524 in 2010, showing an improvement of 4.44%. In terms of actual count, there were 278 individuals with the surname Siwiec in 2000 and this number rose to 314 by 2010, marking a significant increase of 12.95%. Furthermore, the proportion of the Siwiec surname per 100,000 people saw a rise of 10% over the same period.

20002010Change
Rank#66,476#63,5244.44%
Count27831412.95%
Proportion per 100k0.10.1110%

Race and Ethnicity of people with the last name Siwiec

Regarding the ethnic identity associated with the surname Siwiec, according to the Decennial U.S. Census, the majority of the bearers are white. In 2000, 97.48% of those bearing the name Siwiec identified as White, and this percentage slightly increased to 98.73% by 2010. The ethnicity table also shows that a small proportion (2.16%) claimed to be of two or more races in 2000, however, this figure dropped to zero by 2010. No Siwiec's identified as Asian/Pacific Islander, Hispanic, Black, or American Indian and Alaskan Native in either year.

20002010Change
White97.48%98.73%1.28%
Asian/Pacific Islander0%0%0%
Two or More Races2.16%0%0%
Hispanic0%0%0%
Black0%0%0%
American Indian and Alaskan Native0%0%0%