Explore the Family Name Schlaff

The meaning of Schlaff

German: from Middle High German slaf ‘limp, listless’ (a cognate of English sleep), a nickname for a lazy or indolent person (see Schlafer).

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

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

Popularity: According to data from the Decennial U.S. Census, the surname Schlaff ranked 62,961 in popularity in the year 2000 and dropped slightly to 65,244 by 2010, a decrease of 3.63%. Despite this drop in ranking, the number of people with the Schlaff surname actually increased from 297 in 2000 to 304 in 2010, showing a growth of 2.36%. However, when adjusted for population growth, the proportion of individuals with the Schlaff name per 100,000 people decreased by 9.09% over the same period.

20002010Change
Rank#62,961#65,244-3.63%
Count2973042.36%
Proportion per 100k0.110.1-9.09%

Race and Ethnicity of people with the last name Schlaff

Ethnicity: The Decennial U.S. Census data reveals the ethnic identity associated with the Schlaff surname also experienced changes between 2000 and 2010. The percentage of individuals with the surname who identify as White saw a slight increase from 93.6% to 94.08%. Those identifying as Hispanic also increased, rising from 2.02% to 2.63%, marking a significant 30.20% change. Conversely, those reporting Asian/Pacific Islander ethnicity decreased from 2.02% to 1.64%. Unfortunately, data for those identifying with two or more races was suppressed in 2010 for privacy reasons. No individuals with the Schlaff surname identified as Black or American Indian and Alaskan Native in either census year.

20002010Change
White93.6%94.08%0.51%
Hispanic2.02%2.63%30.2%
Asian/Pacific Islander2.02%1.64%-18.81%
Two or More Races2.36%0%0%
Black0%0%0%
American Indian and Alaskan Native0%0%0%