Explore the Family Name Kosmalski

The meaning of Kosmalski

Polish: 1. nickname from kosmała, a derivative of kosmaty ‘shaggy, hairy’ (see Kosmatka) + the suffix -ski. 2. from a derivative of the personal name Kosmas + the suffix -ski. Some characteristic forenames: Polish Wojciech.

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

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

According to the Decennial U.S. Census data, the popularity of the surname Kosmalski in the United States has slightly declined between 2000 and 2010. In 2000, Kosmalski was ranked 67,317th most common surname and by 2010, it had slipped to the 72,568th position, a change of -7.8%. The count of individuals with this surname also dipped from 274 in 2000 to 268 in 2010, a decrease of -2.19%. Consequently, the proportion of people with the surname Kosmalski per 100k population also dropped by -10.0% over the same decade.

	2000	2010	Change
Rank	#67,317	#72,568	-7.8%
Count	274	268	-2.19%
Proportion per 100k	0.1	0.09	-10%

Race and Ethnicity of people with the last name Kosmalski

In terms of ethnic identity, the Decennial U.S. Census data reveals that the majority of people with the surname Kosmalski identify as White. In 2000, 97.45% of Kosmalski's identified as White, however, this percentage decreased to 94.40% in 2010, representing a -3.13% change. During the same period, there was a significant increase in the proportion of people with the surname Kosmalski identifying as Hispanic, jumping from 2.19% in 2000 to 3.73% in 2010, a change of 70.32%. There were no individuals with the Kosmalski surname who identified as Asian/Pacific Islander, Black, or American Indian and Alaskan Native in either 2000 or 2010.

	2000	2010	Change
White	97.45%	94.4%	-3.13%
Hispanic	2.19%	3.73%	70.32%
Asian/Pacific Islander	0%	0%	0%
Two or More Races	0%	0%	0%
Black	0%	0%	0%
American Indian and Alaskan Native	0%	0%	0%