Explore the Family Name Coslow

The meaning of Coslow

1. Altered form of Costlow, a surname of Irish origin. 2. Possibly also a variant of Koslow, a surname of Polish, Sorbian, Russian or Jewish origin.

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

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

Based on the data from the Decennial U.S. Census, the surname Coslow has seen a rise in popularity between 2000 and 2010. In 2000, it ranked 64,385th in the U.S., while by 2010 it had risen to 61,585th. The count of individuals with this surname also increased from 289 in 2000 to 326 in 2010, marking a growth rate of 12.8%. However, the proportion per 100,000 remained constant at 0.11 over these two census years.

20002010Change
Rank#64,385#61,5854.35%
Count28932612.8%
Proportion per 100k0.110.110%

Race and Ethnicity of people with the last name Coslow

In terms of ethnicity, the Decennial U.S. Census data reveals that the majority of individuals with the surname Coslow have a White ethnic identity. In 2000, this group made up 95.85% of people with this surname, although this figure slightly decreased to 93.56% in 2010. In addition, there was a small percentage (2.08%) of Black ethnicity recorded in 2000, but this figure was not reported in 2010. There were no reports of Asian/Pacific Islander, Hispanic, or American Indian and Alaskan Native ethnicities in either year. Interestingly, those identifying with two or more races emerged in 2010, making up 3.37% of the Coslow population.

20002010Change
White95.85%93.56%-2.39%
Two or More Races0%3.37%0%
Asian/Pacific Islander0%0%0%
Hispanic0%0%0%
Black2.08%0%0%
American Indian and Alaskan Native0%0%0%