LAST NAME · 2020 CENSUS
Underdown
Underdown is the 39,424th most common last name in the United States. In the 2020 Census, 602 people carried it, about 0.2 of every 100,000 people. Most people named Underdown are White.
WHO CARRIES THIS NAME · 2020
White85.2%
Black6.5%
Multiracial5.3%
Hispanic2.0%
Asian American0.7%
Native American0.3%
Shares are tabulated by the US Census Bureau, not modeled. Methodology.
RANK OVER TIME
1990
#19,902
0
2000
#34,399
623
2010
#34,916
646
2020
#39,424
602