Explore the Family Name Nishioka

The meaning of Nishioka

Japanese: written 西岡 ‘western hill’. This is a common placename and surname; the surname is found mostly in western Japan and the island of Okinawa. Some bearers are of samurai descent. Some characteristic forenames: Japanese Kenji, Toshio, Masao, Rikio, Takeshi, Tsutomu, Akira, Arata, Atsumi, Atsuo, Chie, Chiyoko.

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

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

Based on data from the Decennial U.S. Census, the surname Nishioka saw a slight decline in popularity between 2000 and 2010. In 2000, the surname ranked 36,531st in popularity in the United States with 578 individuals carrying the name. However, by 2010, the rank dropped to 39,164th and the count reduced to 562, marking a change in proportion per 100k from 0.21 to 0.19, a decrease of approximately 9.52%.

20002010Change
Rank#36,531#39,164-7.21%
Count578562-2.77%
Proportion per 100k0.210.19-9.52%

Race and Ethnicity of people with the last name Nishioka

Concerning ethnic identity, the Decennial U.S. Census data reveals that most individuals with the surname Nishioka identify as Asian/Pacific Islander, though there was a decrease from 84.43% in 2000 to 77.76% in 2010. The census also shows a significant increase in the number of individuals who identified as belonging to two or more races, rising from 8.48% in 2000 to 12.10% in 2010. There was also a notable increase in individuals identifying as white, up from 5.54% in 2000 to 8.36% in 2010. The percentage of Nishiokas identifying as Hispanic saw a slight rise from 1.38% in 2000 to 1.42% in 2010. Meanwhile, no individuals with the surname Nishioka identified as Black or American Indian and Alaskan Native in either 2000 or 2010.

20002010Change
Asian/Pacific Islander84.43%77.76%-7.9%
Two or More Races8.48%12.1%42.69%
White5.54%8.36%50.9%
Hispanic1.38%1.42%2.9%
Black0%0%0%
American Indian and Alaskan Native0%0%0%