Explore the Family Name Yokoyama

The meaning of Yokoyama

Japanese: written 横山 ‘mountain to the side’. It is found throughout Japan and the Ryūkyū Islands, but mostly in the north. Some characteristic forenames: Japanese Kiyoshi, Shigeru, Hiroshi, Yutaka, Akihiko, Atsushi, Katsuhisa, Kazuhiko, Kazuo, Kenji, Koichi, Koji.

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

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

Based on the Decennial U.S. Census data, the popularity of the surname Yokoyama decreased between 2000 and 2010. In 2000, Yokoyama ranked as the 19,515th most popular surname and by 2010 it had dropped to 21,459th place, a change of almost 10%. The number of people bearing the Yokoyama surname also declined from 1,280 in 2000 to 1,218 in 2010, a decrease of approximately 5%. The proportion per 100,000 people also fell by about 13%.

	2000	2010	Change
Rank	#19,515	#21,459	-9.96%
Count	1,280	1,218	-4.84%
Proportion per 100k	0.47	0.41	-12.77%

Race and Ethnicity of people with the last name Yokoyama

The ethnic identity associated with the Yokoyama surname also experienced shifts over the same decade, according to the Decennial U.S. Census data. The largest group identifying as Asian/Pacific Islander decreased from 86.02% in 2000 to 79.80% in 2010. However, those identifying with two or more races increased significantly from 5.31% to 9.77%, an increase of nearly 84%. The percentage of people with the Yokoyama surname who identify as White slightly decreased while those who identify as Hispanic nearly doubled. Although there was no record of people identifying as Black or American Indian and Alaskan Native in 2000, by 2010 there were individuals who identified as American Indian and Alaskan Native.

	2000	2010	Change
Asian/Pacific Islander	86.02%	79.8%	-7.23%
Two or More Races	5.31%	9.77%	83.99%
White	6.02%	5.83%	-3.16%
Hispanic	2.03%	3.78%	86.21%
American Indian and Alaskan Native	0%	0.82%	0%
Black	0%	0%	0%