LAST NAME · 2020 CENSUS
Colby
Colby is the 3,336th most common last name in the United States. In the 2020 Census, 10,566 people carried it, about 3.5 of every 100,000 people. Most people named Colby are White.
WHO CARRIES THIS NAME · 2020
White89.9%
Multiracial3.6%
Hispanic3.6%
Black1.6%
Asian American1.0%
Native American0.3%
Shares are tabulated by the US Census Bureau, not modeled. Methodology.
RANK OVER TIME
1990
#2,642
12,435
2000
#3,015
11,023
2010
#3,204
11,278
2020
#3,336
10,566