Explore the Family Name Dell’olio

The meaning of Dell’olio

Italian: probably an occupational name for an extractor or seller of olive oil, Italian olio, from Latin oleum ‘oil’. Some characteristic forenames: Italian Angelo, Domenic, Franco, Mauro, Nicola, Salvatore, Vito.

Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.

How common is the last name Dell’olio in the United States?

According to data from the Decennial U.S. Census, the surname Dell’Olio has seen a rise in popularity over the years. In 2000, it was ranked 54,152nd and moved up to 50,467th by 2010, marking a 6.8% increase. The count of people with this surname also increased from 357 in 2000 to 414 in 2010, a nearly 16% rise. This resulted in an increase in the proportion per 100,000 people having this surname from 0.13 in 2000 to 0.14 in 2010.

20002010Change
Rank#54,152#50,4676.8%
Count35741415.97%
Proportion per 100k0.130.147.69%

Race and Ethnicity of people with the last name Dell’olio

When looking at the ethnic identity associated with the Dell'Olio surname based on the Decennial U.S. Census data, there are some noticeable shifts between 2000 and 2010. In 2000, the majority identified as White (94.68%), with a small proportion identifying with two or more races (3.36%). By 2010, while the percentage of those identifying as White slightly increased (94.93%), the proportion of those identifying with two or more races decreased by 42.56%. Additionally, new ethnic identities emerged among people with this surname, including Asian/Pacific Islander (1.21%) and Hispanic (1.69%). However, no individuals with the Dell'Olio surname identified as Black, American Indian, or Alaskan Native in either year.

20002010Change
White94.68%94.93%0.26%
Two or More Races3.36%1.93%-42.56%
Hispanic0%1.69%0%
Asian/Pacific Islander0%1.21%0%
Black0%0%0%
American Indian and Alaskan Native0%0%0%