Explore the Family Name Siefker
The meaning of Siefker
North German: patronymic from a pet form of the personal name Siefert, Siegfried (see Siegfried).
Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.
How common is the last name Siefker in the United States?
Based on the Decennial U.S. Census data, the surname Siefker has shown an increase in popularity between 2000 and 2010. In 2000, it ranked 27,562 in terms of popularity, but moved up to 27,228 by 2010, showing a 1.21 percent change. The count of individuals with this surname also increased from 823 to 888 during this period, a rise of approximately 7.9 percent. However, there was a slight decrease in the proportion of people with this surname per 100,000 population, from 0.31 to 0.3, representing a -3.23 percent change.
| 2000 | 2010 | Change | |
|---|---|---|---|
| Rank | #27,562 | #27,228 | 1.21% |
| Count | 823 | 888 | 7.9% |
| Proportion per 100k | 0.31 | 0.3 | -3.23% |
Race and Ethnicity of people with the last name Siefker
In terms of ethnicity, the Decennial U.S. Census data reveals that the majority of people with the Siefker surname identify as White. This ethnic group constituted 98.54 percent in 2000, which slightly decreased to 96.28 percent in 2010. A small percentage identified as Hispanic, increasing from 0.97 percent in 2000 to 1.35 percent in 2010, marking a significant change of 39.18 percent. The census for both years reported no individuals of Asian/Pacific Islander or Black ethnicity. Interestingly, there was a new appearance in 2010 of individuals identifying with two or more races (1.01 percent) and American Indian and Alaskan Native (0.68 percent).
| 2000 | 2010 | Change | |
|---|---|---|---|
| White | 98.54% | 96.28% | -2.29% |
| Hispanic | 0.97% | 1.35% | 39.18% |
| Two or More Races | 0% | 1.01% | 0% |
| American Indian and Alaskan Native | 0% | 0.68% | 0% |
| Asian/Pacific Islander | 0% | 0% | 0% |
| Black | 0% | 0% | 0% |