US Population With Last Name Oneill By Race and Ethnicity in the 2010 Census

Updated on December 11, 2025.

Data Source: US Census Bureau.

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In the 2010 Census, there were 50,028 people in the US whose last name was Oneill, and the rate of occurence of the Oneill last name was 16.96 per 100K.

The race of 92.67% of the people with the last name of Oneill was Non Hispanic White Alone (i.e. 46,361 people); 3.99% was Hispanic or Latino (i.e. 1,996 people); and 1.36% was Non Hispanic Two or More Races (i.e. 680 people).

US Percentage of Pop. With Last Name Oneill By Race And Ethniciity in the 2010 Census

Non-Hisp White
Hispanic or Latino
Non-Hisp Two or More Races
Non-Hisp Black
Non-Hisp ANHPI
Non-Hisp AIAN

The table below below shows by race and ethnicity, the number of people and the percentage of the total people with the Oneill last name.

US Population With Last Name Oneill By Race And Ethniciity in the 2010 Census

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Last Name Number of People Percent of Total (%)
Non Hispanic White Alone 46361 92.67
Hispanic or Latino 1996 3.99
Non Hispanic Two or More Races 680 1.36
Non Hispanic Black or African American Alone 470 0.94
Non Hispanic Asian and Native Hawaiian and Other Pacific Islander Alone 385 0.77
Non Hispanic American Indian and Alaska Native Alone 135 0.27