Explore the Family Name Koff

The meaning of Koff

1. Jewish (Ashkenazic): artificial name from the nineteenth letter in the Hebrew alphabet. 2. Jewish (Ashkenazic): metonymic occupational name for a merchant or trader, from German Kauf ‘purchase’. 3. Dutch (De Koff): nickname for the owner of a kof ‘merchant vessel with two masts’. 4. Possibly an Americanized form of German Kauff. Some characteristic forenames: Jewish Zvi, Yitzchok.

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

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

Based on data from the Decennial U.S. Census, the surname "Koff" has maintained a steady popularity in the United States over the past decade. In 2000, it ranked 35,342 and slightly slipped to 35,447 by 2010, indicating a minor decrease of 0.3%. However, the count of individuals with this surname increased by 5.31%, from 603 to 635 people within this period. The proportion of people named Koff per 100k remained unchanged at 0.22.

20002010Change
Rank#35,342#35,447-0.3%
Count6036355.31%
Proportion per 100k0.220.220%

Race and Ethnicity of people with the last name Koff

The ethnicity distribution for the surname Koff, as reported by the Decennial U.S. Census, shows some significant changes between 2000 and 2010. While the majority of people with this surname identified as White (95.19% in 2000 and 93.54% in 2010), there was a slight decrease of 1.73% during this decade. There was a notable increase in the Hispanic ethnicity, from 1.33% to 2.52%, marking an 89.47% change. The percentage of Asian/Pacific Islander was recorded for the first time in 2010 at 1.26%, while the percentage of those identifying as two or more races saw a small increase from 1.82% to 1.89%. The percentage of Black individuals decreased slightly from 0.83% to 0.79%. Data for American Indian and Alaskan Native was suppressed for both years.

20002010Change
White95.19%93.54%-1.73%
Hispanic1.33%2.52%89.47%
Two or More Races1.82%1.89%3.85%
Asian/Pacific Islander0%1.26%0%
Black0.83%0.79%-4.82%
American Indian and Alaskan Native0%0%0%