US Population With Last Name Kirby By Race and Ethnicity in the 2000 Census
Updated on May 9, 2026.
Data Source: US Census Bureau.
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In the 2000 Census, there were 52,473 people in the US whose last name was Kirby, and the rate of occurence of the Kirby last name was 19.45 per 100K.
The highest percentage of people with the last name of Kirby identified their race as Non Hispanic White Alone (87.47%); the second highest percentage of people identified their race as Non Hispanic Black or African American Alone (8.78%); and the third highest percentage of people identified their race as Non Hispanic Two or More Races (1.40%).
The table below below shows by race and ethnicity, the number of people and the percentage of the total people with the Kirby last name.
US Population With Last Name Kirby By Race And Ethniciity in the 2000 Census
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| Last Name | Number of People | Percent of Total (%) |
|---|---|---|
| Non Hispanic White Alone | 45898 | 87.47 |
| Non Hispanic Black or African American Alone | 4607 | 8.78 |
| Non Hispanic Two or More Races | 735 | 1.40 |
| Hispanic or Latino | 677 | 1.29 |
| Non Hispanic American Indian and Alaska Native Alone | 346 | 0.66 |
| Non Hispanic Asian and Native Hawaiian and Other Pacific Islander Alone | 210 | 0.40 |