Explore the Family Name Delph

The meaning of Delph

English (Norfolk and Cambridgeshire): variant of Delve, itself a topographic name from Middle English delf, delphe, delve (Old English (ge)delf) ‘pit, quarry, canal, ditch’, denoting someone who lived by a pit, quarry, or excavation, or, in some instances, an occupational name for a ditcher, digger, or quarrier (Middle English delver(er)).

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

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

Based on data from the Decennial U.S. Census, the popularity of the surname Delph has seen some shifts over a decade. In 2000, Delph ranked as the 13,282nd most common surname in the U.S., and by 2010, it had slightly decreased in popularity to the 13,600th rank, representing a 2.39% drop. However, the total count of individuals bearing the surname increased from 2,107 in 2000 to 2,228 in 2010, reflecting a 5.74% rise. The proportion of the population with this surname per 100,000 people also saw a minor decrease of 2.56%, dropping from 0.78 in 2000 to 0.76 in 2010.

20002010Change
Rank#13,282#13,600-2.39%
Count2,1072,2285.74%
Proportion per 100k0.780.76-2.56%

Race and Ethnicity of people with the last name Delph

The ethnicity breakdown of those with the Delph surname, also based on the Decennial U.S. Census data, shows considerable variation between 2000 and 2010. The largest ethnic identity group is White, although there was a slight decrease from 87.23% in 2000 to 85.68% in 2010. Those identifying as Black showed an increase from 8.69% to 9.83%. The number of individuals identifying as Asian/Pacific Islander decreased significantly by 56.45%, and those identifying as Hispanic saw a 22.49% decrease. The American Indian and Alaskan Native category saw an increase of 66.67%, while those identifying with two or more races nearly doubled, rising from 1.14% in 2000 to 2.20% in 2010.

20002010Change
White87.23%85.68%-1.78%
Black8.69%9.83%13.12%
Two or More Races1.14%2.2%92.98%
Hispanic2.09%1.62%-22.49%
American Indian and Alaskan Native0.24%0.4%66.67%
Asian/Pacific Islander0.62%0.27%-56.45%