Explore the Family Name Decoste

The meaning of Decoste

French: variant, with fused preposition de ‘from’, of Coste. This form of the surname is virtually non-existing in France. Some characteristic forenames: French Antoine, Marcel, Yves.

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

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

Based on the Decennial U.S. Census data, the surname Decoste experienced slight changes in its popularity between 2000 and 2010. In 2000, it ranked 24,471st in popularity and rose to a rank of 25,459 in 2010, marking a decrease in popularity by 4.04%. The count of people carrying the surname increased from 958 in 2000 to 971 in 2010, a growth rate of 1.36%. However, when looking at the proportion per 100,000 people, the presence of this name decreased by 8.33% over the same period.

20002010Change
Rank#24,471#25,459-4.04%
Count9589711.36%
Proportion per 100k0.360.33-8.33%

Race and Ethnicity of people with the last name Decoste

The Decennial U.S. Census also provides insights into the ethnic identity associated with the surname Decoste. Most notably, there were significant increases in the Hispanic and Black communities carrying this surname from 2000 to 2010. The percentage of Hispanics with the Decoste surname rose by 47.83%, while for the Black community it grew by 57%. On the other hand, the percentage of Whites with this surname decreased by 4.25% over the decade. Meanwhile, those identifying as two or more races saw a slight decrease of 9.6%. There was no recorded change for Asian/Pacific Islander or American Indian and Alaskan Native groups.

20002010Change
White91.75%87.85%-4.25%
Black4.07%6.39%57%
Hispanic2.3%3.4%47.83%
Two or More Races1.25%1.13%-9.6%
Asian/Pacific Islander0%0%0%
American Indian and Alaskan Native0%0%0%