Explore the Family Name Taniguchi

The meaning of Taniguchi

Japanese: written 谷口 ‘mouth of the valley’. It is found mostly in northern Japan. Some bearers descend from the Sasaki family, others from the Kuga branch of the Minamoto clan. Some characteristic forenames: Japanese Seiji, Makoto, Noboru, Hiroshi, Katsumi, Masao, Matsue, Miyuki, Shigeki, Shinji, Sumio, Toru.

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

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

Based on the Decennial U.S. Census, the popularity of the surname Taniguchi has seen a slight decrease in recent years. In 2000, Taniguchi was ranked 19,118th most common surname and by 2010 it had dropped to the 20,565th position - a 7.57% decrease. The number of individuals with this surname also decreased during this period, from 1,316 in 2000 to 1,289 in 2010, marking a 2.05% decline. The proportion per 100k people with the surname Taniguchi also fell by 10.2%.

	2000	2010	Change
Rank	#19,118	#20,565	-7.57%
Count	1,316	1,289	-2.05%
Proportion per 100k	0.49	0.44	-10.2%

Race and Ethnicity of people with the last name Taniguchi

The Decennial U.S. Census also provides information about the ethnic identity associated with the surname Taniguchi. In 2000, a significant 78.95% of those bearing the surname identified as Asian/Pacific Islander, which declined to 72.23% by 2010. Individuals identifying as having two or more ethnicities rose substantially from 9.8% in 2000 to 15.98% in 2010. Those identifying as White reduced from 7.29% to 5.66% over the decade while Hispanic representation increased from 3.65% to 5.66%. No change was recorded for those identifying as Black or American Indian and Alaskan Native, remaining at 0% for both years.

	2000	2010	Change
Asian/Pacific Islander	78.95%	72.23%	-8.51%
Two or More Races	9.8%	15.98%	63.06%
White	7.29%	5.66%	-22.36%
Hispanic	3.65%	5.66%	55.07%
Black	0%	0%	0%
American Indian and Alaskan Native	0%	0%	0%