Explore the Family Name Iwasaki

The meaning of Iwasaki

Japanese: written 岩崎 or 巌崎 ‘stone cape’, also pronounced Iwazaki and Iwagasaki. This is a common placename throughout Japan, found as a surname in western Japan and the Ryūkyū Islands. One family was samurai of Tosa (now Kōchi prefecture). Some characteristic forenames: Japanese Junichi, Hiroshi, Kazuo, Koji, Noriko, Takeshi, Masataka, Michiko, Miyo, Shota, Yoshio, Yuichi.

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

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

Based on the Decennial U.S. Census, the popularity of the surname Iwasaki has seen a minor decrease from 2000 to 2010. Ranked 24,615th in 2000, it shifted downwards in rank to 26,008 in 2010, reflecting a drop of 5.66 percent. The number of people carrying the surname Iwasaki also slightly decreased in this period from 951 to 943 people, a marginal reduction of 0.84 percent.

20002010Change
Rank#24,615#26,008-5.66%
Count951943-0.84%
Proportion per 100k0.350.32-8.57%

Race and Ethnicity of people with the last name Iwasaki

Regarding ethnicity, the Iwasaki surname is predominantly associated with individuals who identify as Asian/Pacific Islander, according to the Decennial U.S. Census data. In 2000, 85.49 percent of Iwasakis identified as Asian/Pacific Islander, decreasing to 82.08 percent in 2010. Additionally, there was a significant increase in those identifying with two or more races, climbing from 7.47 percent in 2000 to 10.18 percent in 2010, indicating a shift of 36.28 percent. The percentage of Iwasakis identifying as White slightly decreased, while those identifying as Hispanic saw an increase of 51.43 percent. No changes were recorded for Black and American Indian and Alaskan Native ethnic identities from 2000 to 2010.

20002010Change
Asian/Pacific Islander85.49%82.08%-3.99%
Two or More Races7.47%10.18%36.28%
White4.94%4.56%-7.69%
Hispanic2.1%3.18%51.43%
Black0%0%0%
American Indian and Alaskan Native0%0%0%