Explore the Family Name Iwanaga
The meaning of Iwanaga
Japanese: written 岩永 ‘stone’ and ‘long’. It is found mostly in Kyūshū.
Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.
How common is the last name Iwanaga in the United States?
According to data from the Decennial U.S. Census, the surname "Iwanaga" decreased slightly in popularity between 2000 and 2010. In 2000, it was ranked as the 62,046th most popular surname, with a count of 302 individuals holding that name. By 2010, its rank had dropped to the 65,964th position, and the count fell marginally to 300. This represents a decrease in popularity of 6.31% over ten years and a count reduction of 0.66%. The proportion of people with the Iwanaga surname also saw a drop of 9.09%, going from 0.11 per 100k in 2000 to 0.1 per 100k in 2010.
| 2000 | 2010 | Change | |
|---|---|---|---|
| Rank | #62,046 | #65,964 | -6.31% |
| Count | 302 | 300 | -0.66% |
| Proportion per 100k | 0.11 | 0.1 | -9.09% |
Race and Ethnicity of people with the last name Iwanaga
When it comes to the ethnic identity of those bearing the Iwanaga surname, the Decennial U.S. Census data shows some shifts over the decade. The majority of those identified as Asian/Pacific Islander, but this percentage fell by 5.42%, from 82.12% in 2000 to 77.67% in 2010. Meanwhile, the proportion of people identifying as two or more races increased by 18.66%, moving from 9.27% in 2000 to 11.00% in 2010. There was also an increase among those identifying as White (from 6.95% to 7.33%) and a significant rise in those identifying as Hispanic (from 1.66% to 3.33%). No data was recorded for individuals identifying as Black or American Indian and Alaskan Native.
| 2000 | 2010 | Change | |
|---|---|---|---|
| Asian/Pacific Islander | 82.12% | 77.67% | -5.42% |
| Two or More Races | 9.27% | 11% | 18.66% |
| White | 6.95% | 7.33% | 5.47% |
| Hispanic | 1.66% | 3.33% | 100.6% |
| Black | 0% | 0% | 0% |
| American Indian and Alaskan Native | 0% | 0% | 0% |