Explore the Family Name Siefken
The meaning of Siefken
North German: patronymic from a pet form of the personal name Siefert (see Siegfried).
Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.
How common is the last name Siefken in the United States?
Based on the Decennial U.S. Census data, the surname Siefken had a slight decrease in popularity between 2000 and 2010, slipping from rank 30,614 to 31,689, marking a change of -3.51%. The actual count of individuals with this surname increased slightly, with a total of 729 in 2010 compared to 719 in 2000, indicating a growth of 1.39%. However, when analyzed per 100,000 people, the proportion dipped from 0.27 to 0.25, an approximate change of -7.41%.
| 2000 | 2010 | Change | |
|---|---|---|---|
| Rank | #30,614 | #31,689 | -3.51% |
| Count | 719 | 729 | 1.39% |
| Proportion per 100k | 0.27 | 0.25 | -7.41% |
Race and Ethnicity of people with the last name Siefken
The ethnic identity associated with the Siefken surname is predominantly White, according to the Decennial U.S. Census data. In 2000, 97.36% of those bearing the Siefken name identified as White; this percentage decreased slightly by 2010 to 96.57%, a shift of -0.81%. A small percentage of Siefkens identified as Hispanic (1.95% in 2000, 1.92% in 2010), while the number of those identifying as American Indian and Alaskan Native increased to 0.69% in 2010 from zero in 2000. No Siefkens were recorded as identifying as Asian/Pacific Islander or Black in either census year, nor did any identify as being of two or more races.
| 2000 | 2010 | Change | |
|---|---|---|---|
| White | 97.36% | 96.57% | -0.81% |
| Hispanic | 1.95% | 1.92% | -1.54% |
| American Indian and Alaskan Native | 0% | 0.69% | 0% |
| Asian/Pacific Islander | 0% | 0% | 0% |
| Two or More Races | 0% | 0% | 0% |
| Black | 0% | 0% | 0% |