Explore the Family Name Diffenderfer

The meaning of Diffenderfer

Americanized form of German Diefendörfer (see Diefenderfer).

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

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

Based on the Decennial U.S. Census data, the surname Diffenderfer experienced a slight decrease in popularity from 2000 to 2010. In 2000, it was ranked 25,564th and fell to 26,853rd by 2010, marking a drop of approximately 5.04%. The actual count of individuals with this surname also decreased marginally from 907 in 2000 to 905 in 2010, which is a subtle reduction of 0.22%. The proportion per 100k people also saw an 8.82% decline from 0.34 to 0.31 over the decade.

20002010Change
Rank#25,564#26,853-5.04%
Count907905-0.22%
Proportion per 100k0.340.31-8.82%

Race and Ethnicity of people with the last name Diffenderfer

In terms of ethnicity, again based on the Decennial U.S. Census data, there was a notable shift in the ethnic identity associated with the Diffenderfer surname. A large majority of individuals with this surname identified as White, although this percentage decreased slightly from 96.69% in 2000 to 93.81% in 2010. Simultaneously, there was a substantial increase in those identifying with two or more races, from 0.77% to 2.21%, showing a growth of 187.01%. Furthermore, the Hispanic segment also increased from 1.76% to 3.09%, a 75.57% jump. No individuals with the Diffenderfer surname identified as Asian/Pacific Islander, Black, or American Indian and Alaskan Native in either census years.

20002010Change
White96.69%93.81%-2.98%
Hispanic1.76%3.09%75.57%
Two or More Races0.77%2.21%187.01%
Asian/Pacific Islander0%0%0%
Black0%0%0%
American Indian and Alaskan Native0%0%0%