US Population With Last Name Cosby By Race and Ethnicity in the 2010 Census
Updated on May 9, 2026.
Data Source: US Census Bureau.
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In the 2010 Census, there were 10,300 people in the US whose last name was Cosby, and the rate of occurence of the Cosby last name was 3.49 per 100K.
The highest percentage of people with the last name of Cosby identified their race as Non Hispanic White Alone (49.68%); the second highest percentage of people identified their race as Non Hispanic Black or African American Alone (44.17%); and the third highest percentage of people identified their race as Non Hispanic Two or More Races (2.74%).
The table below below shows by race and ethnicity, the number of people and the percentage of the total people with the Cosby last name.
US Population With Last Name Cosby By Race And Ethniciity in the 2010 Census
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| Last Name | Number of People | Percent of Total (%) |
|---|---|---|
| Non Hispanic White Alone | 5117 | 49.68 |
| Non Hispanic Black or African American Alone | 4550 | 44.17 |
| Non Hispanic Two or More Races | 282 | 2.74 |
| Hispanic or Latino | 275 | 2.67 |
| Non Hispanic American Indian and Alaska Native Alone | 42 | 0.41 |
| Non Hispanic Asian and Native Hawaiian and Other Pacific Islander Alone | 34 | 0.33 |