Explore the Family Name Sieffert
The meaning of Sieffert
North German and Dutch: variant of Siefert.
Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.
How common is the last name Sieffert in the United States?
Based on the Decennial U.S. Census data, the surname Sieffert has seen an increase in popularity from 2000 to 2010. In 2000, the name was ranked 72,466th most popular in the United States, but by 2010 it had risen to the 66,164th spot, indicating a change of 8.7%. The number of people with this surname also increased during the same period. In 2000, around 250 individuals bore this surname, and by 2010, this number had grown to 299, marking a 19.6% increase. Accordingly, the proportion of people named Sieffert per 100,000 individuals rose by 11.11%.
| 2000 | 2010 | Change | |
|---|---|---|---|
| Rank | #72,466 | #66,164 | 8.7% |
| Count | 250 | 299 | 19.6% |
| Proportion per 100k | 0.09 | 0.1 | 11.11% |
Race and Ethnicity of people with the last name Sieffert
When we look at the ethnic identity associated with the Sieffert surname according to the Decennial U.S. Census figures, there's predominantly a White background. In 2000, about 98% of individuals with this surname identified as White, though by 2010 this proportion slightly decreased to 96.66%, indicating a change of -1.37%. In 2010, it appears that some Siefferts started identifying as Hispanic, with the data showing a 2.68% representation. However, for categories such as Asian/Pacific Islander, Black, and American Indian and Alaskan Native, the percentage remained unchanged at 0%, suggesting no individuals with the Sieffert surname identified with these ethnicities during this period.
| 2000 | 2010 | Change | |
|---|---|---|---|
| White | 98% | 96.66% | -1.37% |
| Hispanic | 0% | 2.68% | 0% |
| Asian/Pacific Islander | 0% | 0% | 0% |
| Two or More Races | 0% | 0% | 0% |
| Black | 0% | 0% | 0% |
| American Indian and Alaskan Native | 0% | 0% | 0% |