Explore the Family Name Sementilli

The meaning of Sementilli

Italian (Lazio): patronymic or plural form of a nickname or a metonymic occupational name from sementa or semente ‘seed’ + the diminutive suffix -illo.

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

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

Based on data from the Decennial U.S. Census, the surname Sementilli saw an increase in popularity in the United States between 2000 and 2010. In the year 2000, the surname was ranked 78,838 in terms of popularity but rose to rank 77,012 in the year 2010, a change of 2.32%. The number of Sementillis also increased during this period, with a count of 225 in 2000 rising to 249 in 2010, marking a growth of 10.67%. The proportion per 100,000 residents remained constant at 0.08, indicating that the surname's prevalence relative to the overall population did not change significantly.

	2000	2010	Change
Rank	#78,838	#77,012	2.32%
Count	225	249	10.67%
Proportion per 100k	0.08	0.08	0%

Race and Ethnicity of people with the last name Sementilli

Regarding the ethnic identity associated with the surname Sementilli, data from the Decennial U.S. Census shows some shifts between 2000 and 2010. The majority of individuals with the surname identified as White, accounting for 94.22% in 2000 and slightly decreasing to 93.57% by 2010. The percentage identifying as Asian/Pacific Islander showed a slight increase from 2.22% to 2.41% over the decade, while those identifying as being of two or more races decreased from 2.22% to zero. A new addition in 2010 was those identifying as Hispanic, comprising 2.01% of the Sementilli population. There were no recorded individuals identifying as Black or American Indian and Alaskan Native in either census year.

	2000	2010	Change
White	94.22%	93.57%	-0.69%
Asian/Pacific Islander	2.22%	2.41%	8.56%
Hispanic	0%	2.01%	0%
Two or More Races	2.22%	0%	0%
Black	0%	0%	0%
American Indian and Alaskan Native	0%	0%	0%