Explore the Family Name Kostek

The meaning of Kostek

Polish: from a pet form of the old personal name Kost 1 and local equivalents (see Kostyk) of Constant and Constantine. Some characteristic forenames: Polish Bronislaw, Ewa, Kazimierz, Stanislaw, Zbigniew.

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

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

The surname Kostek, based on the Decennial U.S. Census data, has experienced a slight decrease in popularity between 2000 and 2010. In 2000, it ranked as the 55,849th most common surname, but dropped to the 57,372nd position by 2010, marking a decline of 2.73%. Despite this drop in rank, the actual count of people with the Kostek surname increased from 343 individuals in 2000 to 355 in 2010, a growth of 3.5%. However, its overall proportion in relation to all surnames decreased from 0.13 per 100,000 people in 2000 to 0.12 per 100,000 in 2010, indicating a reduction of 7.69%.

	2000	2010	Change
Rank	#55,849	#57,372	-2.73%
Count	343	355	3.5%
Proportion per 100k	0.13	0.12	-7.69%

Race and Ethnicity of people with the last name Kostek

In terms of ethnicity, the Kostek surname, according to the Decennial U.S. Census data, is predominantly associated with individuals who identify as White. In 2000, 96.79% of those bearing the surname identified as White, a figure that increased to 98.03% in 2010, marking an increase of 1.28%. There were no recorded instances of the Kostek surname among individuals identifying as Asian/Pacific Islander, Black, Hispanic, or American Indian and Alaskan Native in either 2000 or 2010. Similarly, there were no recorded instances of individuals with this surname identifying with two or more races.

	2000	2010	Change
White	96.79%	98.03%	1.28%
Asian/Pacific Islander	0%	0%	0%
Two or More Races	0%	0%	0%
Hispanic	0%	0%	0%
Black	0%	0%	0%
American Indian and Alaskan Native	0%	0%	0%