US Population With Last Name Grandjean 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 399 people in the US whose last name was Grandjean, and the rate of occurence of the Grandjean last name was 0.14 per 100K.
The highest percentage of people with the last name of Grandjean identified their race as Non Hispanic White Alone (82.96%); the second highest percentage of people identified their race as Non Hispanic Black or African American Alone (8.52%); and the third highest percentage of people identified their race as Hispanic or Latino (7.02%).
The table below below shows by race and ethnicity, the number of people and the percentage of the total people with the Grandjean last name.
US Population With Last Name Grandjean By Race And Ethniciity in the 2010 Census
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| Last Name | Number of People | Percent of Total (%) |
|---|---|---|
| Non Hispanic White Alone | 331 | 82.96 |
| Non Hispanic Black or African American Alone | 34 | 8.52 |
| Hispanic or Latino | 28 | 7.02 |