Explore the Family Name Duclos

The meaning of Duclos

1. French: topographic name, with fused preposition and definite article du ‘from the’, from Old French clos ‘enclosure’ (see Clos), or a habitational name for someone from Le Clos, the name of several places in various parts of France. 2. Altered form of French Desclaux: habitational name, with fused preposition and definite article des ‘from the’, for someone from Les Claux, the name of several places in various parts of France, from a regional variant of clos ‘enclosure’ (compare 1 above). Some characteristic forenames: French Armand, Emile, Rejean, Aime, Alain, Colette, Fernand, Franck, Marcel, Normand, Pascale, Pierre.

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

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

Based on the Decennial U.S. Census, the surname Duclos saw a slight dip in popularity between the years 2000 and 2010. The rank of this last name went from 12,558th in 2000 to 12,715th in 2010, reflecting a decrease of 1.25%. However, despite losing its rank, the count of people with the surname Duclos actually increased by 7.29%, from 2,263 individuals in 2000 to 2,428 in 2010. While the proportion per 100,000 people decreased by 2.38%, it remained relatively stable, changing from 0.84 in 2000 to 0.82 in 2010.

20002010Change
Rank#12,558#12,715-1.25%
Count2,2632,4287.29%
Proportion per 100k0.840.82-2.38%

Race and Ethnicity of people with the last name Duclos

In terms of ethnicity, the Decennial U.S. Census data shows a diverse mix for the surname Duclos. In 2000, the largest ethnic group was White, accounting for 87.89% of individuals with this surname. By 2010, this percentage had slightly decreased to 84.06%. The second-largest ethnic identity was Black, which showed a significant increase from 6.58% in 2000 to 9.43% in 2010. The Hispanic population also grew, from 2.96% to 3.95%. Additionally, the Asian/Pacific Islander category saw a surge percentage-wise, jumping from 0.44% to 0.78%. Individuals identifying as Two or more races decreased from 1.86% to 1.32%, and the American Indian and Alaskan Native category saw growth from 0.27% to 0.45%.

20002010Change
White87.89%84.06%-4.36%
Black6.58%9.43%43.31%
Hispanic2.96%3.95%33.45%
Two or More Races1.86%1.32%-29.03%
Asian/Pacific Islander0.44%0.78%77.27%
American Indian and Alaskan Native0.27%0.45%66.67%