Explore the Family Name Klapp

The meaning of Klapp

German: nickname for a gossip or slanderer, from Middle High German klapf, klaff ‘prattle, malicious gossip’. Compare Clapp.

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

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

Based on data from the Decennial U.S. Census, the surname Klapp saw a decrease in popularity between 2000 and 2010. In 2000, it ranked 30,753 in popularity but fell to the rank of 33,450 in 2010, indicating an 8.77% drop. The number of people with this surname likewise dropped by 4.62%, from 715 in 2000 to 682 in 2010. The proportion of people named Klapp per 100,000 also fell by 14.81%, from 0.27 in 2000 to 0.23 in 2010.

20002010Change
Rank#30,753#33,450-8.77%
Count715682-4.62%
Proportion per 100k0.270.23-14.81%

Race and Ethnicity of people with the last name Klapp

In terms of ethnicity, based again on numbers taken from the Decennial U.S. Census, individuals with the surname Klapp identified predominantly as White, making up 95.80% in 2000 and 95.01% in 2010. This represents a slight decrease of 0.82%. The percentage identifying as Hispanic increased slightly, from 2.80% to 2.93%. Interestingly, those identifying with two or more races saw a significant increase, nearly doubling from 0.84% in 2000 to 1.61% in 2010. There were no individuals with the surname Klapp who identified as Asian/Pacific Islander, Black, or American Indian and Alaskan Native in either year.

20002010Change
White95.8%95.01%-0.82%
Hispanic2.8%2.93%4.64%
Two or More Races0.84%1.61%91.67%
Asian/Pacific Islander0%0%0%
Black0%0%0%
American Indian and Alaskan Native0%0%0%