Explore the Family Name Okubo

The meaning of Okubo

Japanese (Ōkubo): written 大久保 ‘large hollow’, a placename. It is a common surname in Japan and the Ryūkyū Islands. It was taken by several samurai families. Some characteristic forenames: Japanese Akira, Tadashi, Kenzo, Kiyoshi, Masashi, Ryuichi, Takayuki, Tomoyuki, Asako, Ayumi, Daisuke, Hajime.

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

How common is the last name Okubo in the United States?

Based on data from the Decennial U.S. Census, the surname Okubo grew modestly in popularity between 2000 and 2010. In 2000, it was ranked as the 31,167th most popular surname in the United States with a count of 704 occurrences. By 2010, despite slipping slightly to the 31,554th rank, the number of individuals bearing the surname increased by about 4.12% to 733. However, its proportion per 100,000 people dropped by 3.85%, indicating that while the absolute number of people named Okubo increased, its prevalence relative to other surnames decreased slightly.

20002010Change
Rank#31,167#31,554-1.24%
Count7047334.12%
Proportion per 100k0.260.25-3.85%

Race and Ethnicity of people with the last name Okubo

The ethnic identity of those bearing the surname Okubo has also evolved over time, according to the Decennial U.S. Census data. From 2000 to 2010, the percentage of Okubo's identifying as Asian/Pacific Islander decreased by 8.28%, while those identifying as having two or more races increased by 54.16%. There was also a noticeable growth among those identifying as White and Hispanic, with increases of 18.13% and 64.32% respectively. Although previously not recorded in 2000, by 2010, 1.91% of individuals with this surname identified as Black. No change was observed in the American Indian and Alaskan Native category.

20002010Change
Asian/Pacific Islander85.23%78.17%-8.28%
White7.39%8.73%18.13%
Two or More Races4.69%7.23%54.16%
Hispanic2.41%3.96%64.32%
Black0%1.91%0%
American Indian and Alaskan Native0%0%0%