Explore the Family Name Kornacki

The meaning of Kornacki

Polish: habitational name for someone from Kornata in Masovian Voivodeship or Kornaty in Greater Poland Voivodeship, named with the personal name Kornat. Some characteristic forenames: Polish Zbigniew, Jacenty, Malgorzata, Teofil, Walerian.

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

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

The surname Kornacki, according to the Decennial U.S. Census data, saw a slight decrease in popularity between 2000 and 2010. The rank of this surname fell from 30,929 to 31,824, indicating a drop of almost three percent. In terms of raw count, however, the number of individuals with the Kornacki surname increased marginally, from 710 in 2000 to 725 in 2010. This represents an increase of just over two percent. However, when normalized for population size (per 100,000 people), the proportion of individuals with this surname decreased by nearly four percent.

	2000	2010	Change
Rank	#30,929	#31,824	-2.89%
Count	710	725	2.11%
Proportion per 100k	0.26	0.25	-3.85%

Race and Ethnicity of people with the last name Kornacki

Regarding ethnicity, the Decennial U.S. Census data reveals that the Kornacki surname is overwhelmingly associated with individuals who identify as White. As of 2000, 98.03% of individuals bearing this name identified as White, a figure that rose slightly to 98.07% in 2010. In 2000, approximately 1.13% identified as belonging to two or more races, but this figure dropped to zero in 2010. The Hispanic community showed a presence with this surname in 2010, accounting for about 1.52%, while no individuals identified as Asian/Pacific Islander, Black or American Indian and Alaskan Native during either census year.

	2000	2010	Change
White	98.03%	98.07%	0.04%
Hispanic	0%	1.52%	0%
Asian/Pacific Islander	0%	0%	0%
Two or More Races	1.13%	0%	0%
Black	0%	0%	0%
American Indian and Alaskan Native	0%	0%	0%