Explore the Family Name Diethelm
The meaning of Diethelm
South German: from the personal name Diethelm, composed of the elements theud ‘people, race’ + helm ‘helmet, protection’. Some characteristic forenames: German Florian.
Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.
How common is the last name Diethelm in the United States?
Based on the Decennial U.S. Census data, the popularity of the surname Diethelm experienced a slight decrease between 2000 and 2010. In 2000, it was ranked 95,567th and fell to 101,737th in 2010, marking a decrease of 6.46%. Despite this drop in rank, the actual count of individuals with the Diethelm surname remained steady at 177 during both census years. The proportion per 100k people also decreased from 0.07 in 2000 to 0.06 in 2010, a change of -14.29%.
| 2000 | 2010 | Change | |
|---|---|---|---|
| Rank | #95,567 | #101,737 | -6.46% |
| Count | 177 | 177 | 0% |
| Proportion per 100k | 0.07 | 0.06 | -14.29% |
Race and Ethnicity of people with the last name Diethelm
The ethnic identity associated with the Diethelm surname is predominantly White, as highlighted by the Decennial U.S. Census data. In 2000, 97.74% of individuals with this surname identified as White, dropping slightly to 96.61% in 2010. The census data shows no Diethelm identifying as Asian/Pacific Islander, Hispanic, or American Indian and Alaskan Native in either 2000 or 2010. Additionally, the data indicates that there were no individuals identifying as two or more races in these census years. A new appearance of Black ethnicity is noted in 2010, although the data is suppressed for privacy reasons.
| 2000 | 2010 | Change | |
|---|---|---|---|
| White | 97.74% | 96.61% | -1.16% |
| Asian/Pacific Islander | 0% | 0% | 0% |
| Two or More Races | 0% | 0% | 0% |
| Hispanic | 0% | 0% | 0% |
| Black | 0% | 0% | 0% |
| American Indian and Alaskan Native | 0% | 0% | 0% |