Explore the Family Name Isidore

The meaning of Isidore

French and West Indian (mainly Haiti and Saint Lucia): from the French personal name Isidore, which is derived from Greek Isidōros, composed of the elements Isis (the name of an Egyptian goddess, mother of Horus) and doros ‘gift’, hence ‘gift of Isis’. This name was borne by various Christian saints, including the great encyclopedist Saint Isidore of Seville (c.560–636). Because of its perceived similarity to Isaac and Israel, it also became popular in modern times as a Jewish personal name. This surname brought to the US mainly from the West Indies.

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

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

Based on the data collected from the Decennial U.S. Census, the popularity of the surname Isidore has seen a significant increase in the United States between 2000 and 2010. In the year 2000, Isidore was ranked 42,363rd most common name, while it rose to 37,229th position by 2010, reflecting an overall growth of 12.12%. Similarly, there was a 24.27% increase in the count of individuals with this surname, from 482 to 599 during this decade. The proportion per 100,000 also saw an upward trend from 0.18 to 0.2, indicating an 11.11% change.

20002010Change
Rank#42,363#37,22912.12%
Count48259924.27%
Proportion per 100k0.180.211.11%

Race and Ethnicity of people with the last name Isidore

The ethnicity distribution for the surname Isidore also changed between 2000 and 2010 as shown by Decennial U.S. Census data. Interestingly, the surname made its appearance among Asian/Pacific Islander and American Indian and Alaskan Native categories in 2010, which were not present in 2000. There was a decrease in proportions among those identifying as White (13.49% to 11.85%) and Hispanic (2.90% to 2.67%). The proportion of people with the surname Isidore who identified as belonging to two or more races decreased by 42.27%, changing from 8.09% in 2000 to 4.67% in 2010. However, there was an increase in the Black population from 74.07% to 77.63%, making it the largest ethnic group associated with the surname Isidore.

20002010Change
Black74.07%77.63%4.81%
White13.49%11.85%-12.16%
Two or More Races8.09%4.67%-42.27%
Hispanic2.9%2.67%-7.93%
Asian/Pacific Islander0%1.67%0%
American Indian and Alaskan Native0%1.5%0%