Explore the Family Name Biby

The meaning of Biby

English (Gloucestershire): variant of Bibby. This surname is now rare in Britain.

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

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

According to data from the Decennial U.S. Census, the popularity of the surname Biby has seen a slight decrease over the decade from 2000 to 2010. In 2000, it was ranked 38,263 in terms of popularity, but by 2010, it had dropped to rank 43,206, marking a decline of 12.92 percent. The number of people with this surname also decreased over this period, from 544 in 2000 to 500 in 2010, a drop of 8.09 percent. The proportion of people with this surname per 100,000 also fell during this time from 0.2 to 0.17, a decline of 15 percent.

	2000	2010	Change
Rank	#38,263	#43,206	-12.92%
Count	544	500	-8.09%
Proportion per 100k	0.2	0.17	-15%

Race and Ethnicity of people with the last name Biby

In terms of ethnic identity, the Decennial U.S. Census data shows that most individuals with the surname Biby identify as White. In 2000, 91.73 percent reported their ethnicity as white, although this percentage saw a slight decrease to 87.4 percent by 2010. The Hispanic population within this surname group saw an increase from 2.76 percent in 2000 to 4.8 percent in 2010. The Asian/Pacific Islander group also displayed a change, with no individuals identifying as such in 2000, but increasing to 3 percent by 2010. Meanwhile, the American Indian and Alaskan Native group showed a marginal increase from 2.57 percent in 2000 to 2.6 percent a decade later. The group identifying as two or more races decreased to zero by 2010, while there were no individuals identifying as Black in either census year.

	2000	2010	Change
White	91.73%	87.4%	-4.72%
Hispanic	2.76%	4.8%	73.91%
Asian/Pacific Islander	0%	3%	0%
American Indian and Alaskan Native	2.57%	2.6%	1.17%
Two or More Races	1.29%	0%	0%
Black	0%	0%	0%