Explore the Family Name Geoghegan

The meaning of Geoghegan

Irish: shortened Anglicized form of Gaelic Mag Eochagáin, a patronymic from the personal name Eochagán, a diminutive of Eochaidh, Eochaidhe ‘horseman’. Compare Caughey. Some characteristic forenames: Irish Dermot, Eamon, Eamonn, Kieran, Seamus, Siobhan.

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

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

The popularity of the surname Geoghegan, according to data based on the Decennial U.S. Census, saw a slight shift between 2000 and 2010. The rank of this surname fell slightly from 16,586 in 2000 to 16,802 in 2010, marking a change of -1.3. In terms of count, there was an increase from 1,593 in 2000 to 1,699 in 2010, indicating a growth of 6.65. However, the proportion per 100,000 people dipped minimally from 0.59 in 2000 to 0.58 in 2010, showing a decrease of -1.69.

20002010Change
Rank#16,586#16,802-1.3%
Count1,5931,6996.65%
Proportion per 100k0.590.58-1.69%

Race and Ethnicity of people with the last name Geoghegan

The ethnicity statistics for the surname Geoghegan also underwent some changes during the same period as reported by the Decennial U.S. Census. Individuals with this surname identifying as White decreased from 96.05% in 2000 to 93.64% in 2010, a change of -2.51%. Those identifying as Hispanic increased from 1.63% to 2.12%, a rise of 30.06%. The proportion identifying as Black showed a slight drop from 1.13% to 1.06%, a reduction of -6.19%. Meanwhile, those identifying as belonging to two or more races displayed a significant increase from 0.75% to 2.12%, a huge surge of 182.67%. The percentage of individuals identifying as Asian/Pacific Islander was 0.44% in 2000 but the 2010 data was suppressed for privacy. The percentage of American Indian and Alaskan Native remained static at 0.00% in both years.

20002010Change
White96.05%93.64%-2.51%
Two or More Races0.75%2.12%182.67%
Hispanic1.63%2.12%30.06%
Black1.13%1.06%-6.19%
Asian/Pacific Islander0.44%0%0%
American Indian and Alaskan Native0%0%0%