Explore the Family Name Diefenderfer
The meaning of Diefenderfer
Altered form of German Diefendorfer, a derivative of Diefendorf.
Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.
How common is the last name Diefenderfer in the United States?
Based on the Decennial U.S. Census data, the surname Diefenderfer decreased in popularity from 2000 to 2010. In 2000, it ranked 28,674 and then dropped to a rank of 31,068 in 2010, marking an 8.35% decrease. The number of individuals with the Diefenderfer surname also saw a decrease during this period, with a count of 782 in 2000 and 747 in 2010, representing a drop of 4.48%. The proportion of people with this surname per 100,000 also declined by 13.79%, from 0.29 in 2000 to 0.25 in 2010.
| 2000 | 2010 | Change | |
|---|---|---|---|
| Rank | #28,674 | #31,068 | -8.35% |
| Count | 782 | 747 | -4.48% |
| Proportion per 100k | 0.29 | 0.25 | -13.79% |
Race and Ethnicity of people with the last name Diefenderfer
Regarding the ethnic identity associated with the Diefenderfer surname, the Decennial U.S. Census data shows that the vast majority identified as White in both 2000 and 2010, though the percentage did slightly decrease from 97.83% to 96.79%. The percentage identifying as Hispanic saw the most significant increase, jumping from 1.15% in 2000 to 1.87% in 2010, which is a change of 62.61%. A small percentage of Diefenderfers identified as belonging to two or more races, increasing slightly from 0.77% in 2000 to 0.80% in 2010. No Diefenderfers identified as Asian/Pacific Islander, Black, or American Indian and Alaskan Native during these census years.
| 2000 | 2010 | Change | |
|---|---|---|---|
| White | 97.83% | 96.79% | -1.06% |
| Hispanic | 1.15% | 1.87% | 62.61% |
| Two or More Races | 0.77% | 0.8% | 3.9% |
| Asian/Pacific Islander | 0% | 0% | 0% |
| Black | 0% | 0% | 0% |
| American Indian and Alaskan Native | 0% | 0% | 0% |