LAST NAME · 2020 CENSUS
Siefken
Siefken is the 31,863rd most common last name in the United States. In the 2020 Census, 777 people carried it, about 0.3 of every 100,000 people. Most people named Siefken are White.
WHO CARRIES THIS NAME · 2020
White91.9%
Hispanic4.8%
Multiracial2.1%
Black0.5%
Asian American0.4%
Native American0.4%
Shares are tabulated by the US Census Bureau, not modeled. Methodology.
RANK OVER TIME
1990
#34,708
0
2000
#30,614
719
2010
#31,689
729
2020
#31,863
777