LAST NAME · 2020 CENSUS
Dieffenbach
Dieffenbach is the 34,389th most common last name in the United States. In the 2020 Census, 710 people carried it — about 0.2 of every 100,000 people. Most people named Dieffenbach are White.
WHO CARRIES THIS NAME · 2020
White93.5%
Multiracial2.8%
Hispanic2.3%
Black0.6%
Asian American0.6%
Native American0.3%
Shares are tabulated by the US Census Bureau, not modeled. Methodology.
RANK OVER TIME
1990
#57,614
0
2000
#31,235
702
2010
#31,383
738
2020
#34,389
710