Explore the Family Name Deblanc

The meaning of Deblanc

French: patronymic, with fused preposition de ‘of’, from Blanc ‘white’.

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

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

Based on the Decennial U.S. Census, the surname Deblanc's popularity saw a slight decrease in rank from 48,293 in 2000 to 50,659 in 2010, representing a change of -4.9. Despite this slip in rank, the count of individuals bearing the Deblanc surname slightly increased from 411 in 2000 to 412 in 2010. The proportion per 100,000 people also dropped by approximately 6.67% over the same period.

20002010Change
Rank#48,293#50,659-4.9%
Count4114120.24%
Proportion per 100k0.150.14-6.67%

Race and Ethnicity of people with the last name Deblanc

Regarding ethnicity, the Decennial U.S. Census data presents some shifts between 2000 and 2010. Those identifying as White with the Deblanc surname decreased from 72.26% to 70.63%, while those identifying as Black also fell from 23.11% to 21.60%. Conversely, the census reported an increase within the Hispanic group from 1.95% to 3.40%. There were no changes among those reporting Asian/Pacific Islander or American Indian and Alaskan Native ethnic identities, with both groups remaining at 0% for both years. Those reporting two or more races remained relatively stable at around 2.18%.

20002010Change
White72.26%70.63%-2.26%
Black23.11%21.6%-6.53%
Hispanic1.95%3.4%74.36%
Two or More Races2.19%2.18%-0.46%
Asian/Pacific Islander0%0%0%
American Indian and Alaskan Native0%0%0%