Kleinfelter Family History
Kleinfelter Name Meaning
Americanized form of German Kleinfelder .
Source: Dictionary of American Family Names 2nd edition, 2022
View Census Data for Kleinfelter | Data not to scale
Between 1963 and 2004, in the United States, Kleinfelter life expectancy was at its lowest point in 1986, and highest in 1998. The average life expectancy for Kleinfelter in 1963 was 75, and 71 in 2004.