Explore the Family Name De Block

The meaning of De Block

Dutch and Flemish: variant, with the definite article de ‘the’, of Block.

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

How common is the last name De Block in the United States?

Based on the Decennial U.S. Census, the surname De Block has seen a slight decrease in popularity over the years. In 2000, it was ranked as the 42,363rd most popular surname, but by 2010, it had fallen to 45,495th place, representing a change of -7.39%. The number of people with this surname also fell from 482 in 2000 to 470 in 2010, a decrease of 2.49%. Additionally, the proportion of individuals with this surname per 100k people declined by 11.11% between these years.

20002010Change
Rank#42,363#45,495-7.39%
Count482470-2.49%
Proportion per 100k0.180.16-11.11%

Race and Ethnicity of people with the last name De Block

As for the ethnic identity associated with the surname De Block, the Decennial U.S. Census data reveals that the majority of individuals with this last name identify as White. In 2000, 97.10% of De Blocks identified as White, and this figure fell slightly to 96.38% in 2010. Meanwhile, those identifying as Hispanic saw a minor increase from 1.04% in 2000 to 1.06% in 2010. Interestingly, no De Blocks identified as Asian/Pacific Islander or Black in either year. We see a new appearance in 2010, where 1.49% of De Blocks identified with two or more races. However, the representation of American Indian and Alaskan Native within the De Block community dropped to zero in 2010 after being at 1.04% in 2000.

20002010Change
White97.1%96.38%-0.74%
Two or More Races0%1.49%0%
Hispanic1.04%1.06%1.92%
Asian/Pacific Islander0%0%0%
Black0%0%0%
American Indian and Alaskan Native1.04%0%0%