Explore the Family Name Nii

The meaning of Nii

Japanese: variously written, sometimes with characters used phonetically; the most probable meanings are 仁井 ‘benevolent well’, 新居 ‘new residence’, or 新井 ‘new well’. It is not common in Japan. Some characteristic forenames: Japanese Yuko, Aiko, Hideaki, Hiroki, Hiroyuki, Isamu, Kaoru, Katsumi, Keiichiro, Kenji, Masako, Masayuki.

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

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

Based on the data from the Decennial U.S. Census, the surname Nii has seen a surge in popularity between the years 2000 and 2010. In 2000, it was ranked 74,957th, but by 2010, it had climbed to the rank of 68,345th. This represents an increase of 8.82%. The count of people with this last name also saw a growth of 20%, moving from 240 individuals to 288 over the same period. The proportion per 100,000 people with the surname Nii also increased by 11.11%.

	2000	2010	Change
Rank	#74,957	#68,345	8.82%
Count	240	288	20%
Proportion per 100k	0.09	0.1	11.11%

Race and Ethnicity of people with the last name Nii

The ethnicity breakdown for the surname Nii, again based on the Decennial U.S. Census, shows that the majority identify as Asian/Pacific Islander, although this group saw a decrease of 11.69% between 2000 and 2010. Significantly, there was a notable increase of 50.46% in individuals who identified with two or more races during this timeframe. While the number of those identifying as White decreased slightly by 6.78%, the Hispanic category grew by 42.81%. In 2010, the Black demographic emerged with 2.08% identifying under this category, while no change was reported for the American Indian and Alaskan Native group.

	2000	2010	Change
Asian/Pacific Islander	76.67%	67.71%	-11.69%
Two or More Races	12.92%	19.44%	50.46%
White	7.08%	6.6%	-6.78%
Hispanic	2.92%	4.17%	42.81%
Black	0%	2.08%	0%
American Indian and Alaskan Native	0%	0%	0%