Explore the Family Name Korby

The meaning of Korby

American shortened and altered form of Korpijärvi, a habitational name from farms so named, from korpi ‘remote forest, wilderness’ + järvi ‘lake’, recorded as a hereditary surname since the 19th century in western Finland (mainly in Tavastia and Ostrobothnia). Some characteristic forenames: Finnish Erkki, Aino, Aune.

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

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

Based on the Decennial U.S. Census data, the popularity of the surname "Korby" has seen a slight decrease over the decade from 2000 to 2010. The rank of the surname dropped from 51,945 in 2000 to 53,913 in 2010, reflecting a -3.79% change. However, the actual count of people with this surname increased slightly from 376 in 2000 to 383 in 2010, representing a marginal growth of 1.86%. The proportion per 100,000 people decreased by -7.14%, going from 0.14 in 2000 to 0.13 in 2010.

	2000	2010	Change
Rank	#51,945	#53,913	-3.79%
Count	376	383	1.86%
Proportion per 100k	0.14	0.13	-7.14%

Race and Ethnicity of people with the last name Korby

Looking at ethnic identity associated with the surname "Korby", the Decennial U.S. Census data shows that it was predominantly linked with White ethnicity over the 10-year period, although the percentage slightly decreased from 96.28% in 2000 to 95.82% in 2010. No individuals identified as Asian/Pacific Islander or Black in either year. However, in 2010, there was a new appearance of Hispanic and American Indian and Alaskan Native ethnic identities, each comprising 1.57% of the total Korby population. Interestingly, the category of two or more races, which had a small representation at 1.60% in 2000, disappeared completely in 2010.

	2000	2010	Change
White	96.28%	95.82%	-0.48%
Hispanic	0%	1.57%	0%
American Indian and Alaskan Native	0%	1.57%	0%
Asian/Pacific Islander	0%	0%	0%
Two or More Races	1.6%	0%	0%
Black	0%	0%	0%