Explore the Family Name Daff

The meaning of Daff

English (Lincolnshire): nickname from Middle English daff ‘simple person’.

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

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

Based on the Decennial U.S. Census data, the popularity of the surname "Daff" slightly decreased in rank from 87,348 in 2000 to 90,113 in 2010, showing a change of -3.17%. However, the number of individuals with this surname subtly increased from 198 in 2000 to 205 in 2010, revealing a growth rate of 3.54%. The proportion of individuals named Daff per 100,000 people remained constant at 0.07 during both years.

20002010Change
Rank#87,348#90,113-3.17%
Count1982053.54%
Proportion per 100k0.070.070%

Race and Ethnicity of people with the last name Daff

Looking into the ethnicity breakdown for the surname "Daff," the Decennial U.S. Census data shows that individuals identifying as White formed the majority, although their percentage decreased from 91.92% in 2000 to 84.88% in 2010. A significant increase was observed in the Black community, where the percentage rose from 6.06% in 2000 to 13.17% in 2010. No changes were noted among those identifying as Asian/Pacific Islander, Hispanic, American Indian and Alaskan Native, or belonging to two or more races over this period, with these categories either remaining constant at 0% or being suppressed (S) for privacy reasons.

20002010Change
White91.92%84.88%-7.66%
Black6.06%13.17%117.33%
Asian/Pacific Islander0%0%0%
Two or More Races0%0%0%
Hispanic0%0%0%
American Indian and Alaskan Native0%0%0%