Explore the Family Name Sillas

The meaning of Sillas

Spanish: plural form of Silla.

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

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

Based on the data from the Decennial U.S. Census, the popularity of the surname Sillas has seen a significant increase from 2000 to 2010. In 2000, Sillas was ranked as the 32,059th most popular surname with a count of 679 individuals bearing this last name. This represented a proportion of 0.25 per 100,000. However, by 2010, the rank had improved to 28,049 and the count had increased to 854 individuals, representing a proportion of 0.29 per 100,000. This indicates an overall growth of 12.51% in popularity and a 25.77% increase in the count of individuals with the Sillas surname over the decade.

	2000	2010	Change
Rank	#32,059	#28,049	12.51%
Count	679	854	25.77%
Proportion per 100k	0.25	0.29	16%

Race and Ethnicity of people with the last name Sillas

The ethnicity associated with the surname Sillas as per the Decennial U.S. Census reveals a predominantly Hispanic presence. In 2000, a striking 88.66% of individuals with the surname identified as Hispanic, which increased to 90.52% by 2010, demonstrating a 2.10% change over the decade. The proportion identifying as White decreased from 5.01% in 2000 to 3.28% in 2010, reflecting a -34.53% change. Those identifying as Black also saw a decline from 5.74% to 5.04%. Interestingly, while there were no individuals claiming Asian/Pacific Islander or American Indian and Alaskan Native origins in 2000, by 2010, these groups each represented 0.59% of the Sillas surname population. A similar percentage (0.59%) also reported having two or more races in 2010.

	2000	2010	Change
Hispanic	88.66%	90.52%	2.1%
Black	5.74%	5.04%	-12.2%
White	5.01%	3.28%	-34.53%
Two or More Races	0%	0.59%	0%
American Indian and Alaskan Native	0%	0.59%	0%
Asian/Pacific Islander	0%	0%	0%