Explore the Family Name Kosloski

The meaning of Kosloski

Variant of Koslowski, a surname of Polish and Jewish origin, or an altered form of its original Polish form Kozłowski (see Kozlowski) or of its Russian and Ukrainian cognate Kozlovsky. Compare Kosloske, Koslosky, and Kozloski.

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

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

Based on data from the Decennial U.S. Census, the popularity of the surname Kosloski has seen a slight increase in the United States between 2000 and 2010. In the year 2000, it was the 29,598th most popular surname, climbing to the 29,093rd spot by 2010. This represents an increase of 1.71% in rank. The number of individuals with the Kosloski surname also grew from 751 to 815 during this period, marking an 8.52% increase. However, its proportion per 100,000 people remained consistent at 0.28.

	2000	2010	Change
Rank	#29,598	#29,093	1.71%
Count	751	815	8.52%
Proportion per 100k	0.28	0.28	0%

Race and Ethnicity of people with the last name Kosloski

In terms of ethnicity associated with the surname Kosloski, data from the Decennial U.S. Census reveals that the vast majority of individuals with this surname identify as White, although there's been a slight decrease from 98.00% in 2000 to 96.56% in 2010. Meanwhile, the percentage of people identifying as Hispanic increased significantly from 0.67% to 1.72%, a jump of 156.72%. A minor increase was also observed in those identifying with two or more races, from 0.67% to 0.74%. There were no recorded individuals with the Kosloski surname who identified as Asian/Pacific Islander, Black, or American Indian and Alaskan Native in either census year.

	2000	2010	Change
White	98%	96.56%	-1.47%
Hispanic	0.67%	1.72%	156.72%
Two or More Races	0.67%	0.74%	10.45%
Asian/Pacific Islander	0%	0%	0%
Black	0%	0%	0%
American Indian and Alaskan Native	0%	0%	0%