Explore the Family Name Kleinfelter
The meaning of Kleinfelter
Americanized form of German Kleinfelder.
Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.
How common is the last name Kleinfelter in the United States?
Based on the Decennial U.S. Census data, the surname Kleinfelter has seen a slight decrease in popularity between 2000 and 2010. In 2000, it ranked as the 37,640th most common surname, but by 2010, it had dropped to the 38,691st position, reflecting a change of -2.79%. However, the actual count of people with this surname increased slightly over the decade from 556 to 571, indicating a growth rate of 2.7%. Despite this increase, its proportion per 100,000 people declined by 9.52%, from 0.21 to 0.19.
| 2000 | 2010 | Change | |
|---|---|---|---|
| Rank | #37,640 | #38,691 | -2.79% |
| Count | 556 | 571 | 2.7% |
| Proportion per 100k | 0.21 | 0.19 | -9.52% |
Race and Ethnicity of people with the last name Kleinfelter
When examining the ethnic identity associated with the surname Kleinfelter, the Decennial U.S. Census data shows an overwhelming majority identifying as White. In both 2000 and 2010, nearly 99% of individuals with this surname identified as White, with a minor decrease of 0.14% over the decade. Other ethnic identities, including Asian/Pacific Islander, Hispanic, Black, and American Indian/Alaskan Native, were virtually non-existent among those with the Kleinfelter surname during these years. Data regarding those identifying with two or more races was suppressed for privacy.
| 2000 | 2010 | Change | |
|---|---|---|---|
| White | 98.74% | 98.6% | -0.14% |
| 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% |