Explore the Family Name Keohan

The meaning of Keohan

Irish (Cork): variant of Keohane.

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

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

The popularity of the surname Keohan has seen a slight decrease between 2000 and 2010, according to data from the Decennial U.S. Census. In 2000, the Keohan name ranked 85,297th in popularity and by 2010, it had dropped to the 88,336th position, marking a 3.56% decline. The number of individuals bearing this surname, however, increased marginally from 204 to 210 during the same period, a growth rate of nearly 2.94%. Despite this increase, the proportion of people with the Keohan surname per 100,000 population decreased by 12.5%, from 0.08 in 2000 to 0.07 in 2010.

20002010Change
Rank#85,297#88,336-3.56%
Count2042102.94%
Proportion per 100k0.080.07-12.5%

Race and Ethnicity of people with the last name Keohan

In terms of ethnicity, the Keohan surname is predominantly associated with White individuals, based on data from the Decennial U.S. Census. In 2000, approximately 98.04% of those with the Keohan surname identified as White, and although this percentage decreased slightly to 93.81% in 2010, it remained the majority ethnic identity. Interestingly, while no Keohans identified as Hispanic in 2000, by 2010, 3.33% claimed this ethnic identity. No significant changes were observed for other ethnic identities such as Asian/Pacific Islander, Black, and American Indian and Alaskan Native, all of which remained at zero percent both in 2000 and 2010.

20002010Change
White98.04%93.81%-4.31%
Hispanic0%3.33%0%
Asian/Pacific Islander0%0%0%
Two or More Races0%0%0%
Black0%0%0%
American Indian and Alaskan Native0%0%0%