Explore the Family Name Deighan

The meaning of Deighan

Irish: shortened Anglicized form of either Ó Duibhginn, see Dugan 2, or Ó Díochon, see Deehan. Some characteristic forenames: Irish Paddy, Eamon.

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

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

Based on the Decennial U.S. Census, the surname Deighan has seen some changes in its popularity over the years. In 2000, Deighan was ranked 49,057 in terms of popularity and this position slipped to 53,419 by 2010, a decrease of approximately 8.89%. The count of individuals bearing this surname also dropped from 403 in 2000 to 387 in 2010, reflecting a decline of almost 4%. The proportion of Deighans per 100,000 people fell by 13.33%, from 0.15 in 2000 to 0.13 in 2010.

20002010Change
Rank#49,057#53,419-8.89%
Count403387-3.97%
Proportion per 100k0.150.13-13.33%

Race and Ethnicity of people with the last name Deighan

Examining the ethnic identity associated with the surname Deighan as provided by the Decennial U.S. Census, we can see that most individuals are identified as White, with a slightly decreasing percentage from 96.28% in 2000 to 96.12% in 2010. No Deighans were recorded as Asian/Pacific Islander, Two or more races, or American Indian and Alaskan Native in either year. The percentage of Deighans identified as Black dropped from 1.74% in 2000 to 0% in 2010, while those identified as Hispanic increased notably from 1.24% to 2.07% over the same period.

20002010Change
White96.28%96.12%-0.17%
Hispanic1.24%2.07%66.94%
Asian/Pacific Islander0%0%0%
Two or More Races0%0%0%
Black1.74%0%0%
American Indian and Alaskan Native0%0%0%