US Population With Last Name Mancillas 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 2,751 people in the US whose last name was Mancillas, and the rate of occurence of the Mancillas last name was 0.93 per 100K.
The highest percentage of people with the last name of Mancillas identified their race as Hispanic or Latino (93.35%); the second highest percentage of people identified their race as Non Hispanic White Alone (5.85%); and the third highest percentage of people identified their race as Non Hispanic American Indian and Alaska Native Alone (0.4%).
The table below below shows by race and ethnicity, the number of people and the percentage of the total people with the Mancillas last name.
US Population With Last Name Mancillas By Race And Ethniciity in the 2010 Census
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| Last Name | Number of People | Percent of Total (%) |
|---|---|---|
| Hispanic or Latino | 2568 | 93.35 |
| Non Hispanic White Alone | 161 | 5.85 |
| Non Hispanic American Indian and Alaska Native Alone | 11 | 0.4 |
| Non Hispanic Black or African American Alone | 9 | 0.33 |