LAST NAME · 2020 CENSUS
Cosby
Cosby is the 3,449th most common last name in the United States. In the 2020 Census, 10,111 people carried it — about 3.4 of every 100,000 people. Most people named Cosby are White.
WHO CARRIES THIS NAME · 2020
White46.2%
Black43.2%
Multiracial5.7%
Hispanic3.8%
Asian American0.5%
Native American0.5%
Shares are tabulated by the US Census Bureau, not modeled. Methodology.
RANK OVER TIME
1990
#2,917
9,948
2000
#3,242
10,121
2010
#3,471
10,300
2020
#3,449
10,111