Explore the Family Name Siefert

The meaning of Siefert

German and Dutch: from a personal name, a local form of Siegfried. Compare Seifert, Sieffert, Sievert and Siewert.

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

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

Based on the Decennial U.S. Census data, the surname Siefert saw a slight decrease in popularity between 2000 and 2010. In 2000, Siefert ranked 14,363rd in popularity with 1,911 instances of the name, equating to roughly 0.71 per 100,000 people. By 2010, its rank had slipped to 14,739, despite an increase in the count of the surname to 2,016 or about 0.68 instances per 100,000 people. This indicates a -2.62% change in rank and a -4.23% change in proportion per 100,000 people.

	2000	2010	Change
Rank	#14,363	#14,739	-2.62%
Count	1,911	2,016	5.49%
Proportion per 100k	0.71	0.68	-4.23%

Race and Ethnicity of people with the last name Siefert

In terms of ethnic identity, the Siefert surname has seen some fluctuations over the decade from 2000 to 2010. According to the Decennial U.S. Census, in 2000, a significant majority of those with the Siefert surname were white at 97.65%, but this number slightly decreased to 96.78% by 2010. The data also shows an increase in the percentage of Sieferts identifying as Hispanic, rising from 0.89% to 1.74%. However, there was a total loss of Asian/Pacific Islander representation under this surname from 2000 to 2010. The count of those identifying as two or more races went up to 0.84% from 0.63%, while the Black community saw a modest increase from no representation in 2000 to 0.25% in 2010. The American Indian and Alaskan Native category remained stable at zero for both years.

	2000	2010	Change
White	97.65%	96.78%	-0.89%
Hispanic	0.89%	1.74%	95.51%
Two or More Races	0.63%	0.84%	33.33%
Black	0%	0.25%	0%
Asian/Pacific Islander	0.63%	0%	0%
American Indian and Alaskan Native	0%	0%	0%