Explore the Family Name Kostecki

The meaning of Kostecki

Polish: habitational name for someone from a place called Kostki in Świętokrzyskie, Masovian, and Podlaskie (unidentified, near town of Kolno) voivodeships. Some characteristic forenames: Polish Zbigniew, Jarek, Maciej, Malgorzata, Stanislaw, Tadeusz, Teofil.

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

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

The surname Kostecki, as per data from the Decennial U.S. Census, saw a slight decrease in popularity between 2000 and 2010. In 2000, it ranked 26,394th most common, falling to 27,581st in 2010, marking a change of -4.5%. The count of people with this surname remained relatively stable, growing from 870 in 2000 to 873 in 2010. Proportionally, for every 100,000 people, the presence of the Kostecki surname dropped by 6.25%, moving from 0.32 in 2000 to 0.3 in 2010.

	2000	2010	Change
Rank	#26,394	#27,581	-4.5%
Count	870	873	0.34%
Proportion per 100k	0.32	0.3	-6.25%

Race and Ethnicity of people with the last name Kostecki

When looking at the ethnic identity associated with the surname Kostecki, the Decennial U.S. Census data shows that the vast majority identify as White, holding steady at approximately 97.36% in 2000 and 97.37% in 2010. Additionally, there was a notable increase in those identifying as Hispanic, going from 0.92% in 2000 to 1.60% in 2010, signifying a growth of 73.91%. Meanwhile, the proportion of individuals with the Kostecki surname identifying with two or more races declined by 20.00%, from 1.15% in 2000 to 0.92% in 2010. No Kostecki individuals identified as Asian/Pacific Islander, Black, or American Indian and Alaskan Native in either 2000 or 2010.

	2000	2010	Change
White	97.36%	97.37%	0.01%
Hispanic	0.92%	1.6%	73.91%
Two or More Races	1.15%	0.92%	-20%
Asian/Pacific Islander	0%	0%	0%
Black	0%	0%	0%
American Indian and Alaskan Native	0%	0%	0%