Explore the Family Name Janiszewski

The meaning of Janiszewski

Polish: habitational name for someone from Janiszew in Łódź, Masovian and Greater Poland voivodeships, or Janiszów in Lublin and Podkarpackie voivodeships; both placenames are from the personal name Janisz, a derivative of Jan. Some characteristic forenames: Polish Leszek, Bogdan, Bronislaw, Czeslaw, Danuta, Halina, Jadwiga, Kazimierz, Stanislaw.

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

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

Based on the Decennial U.S. Census data, the surname Janiszewski witnessed a slight decline in popularity between 2000 and 2010. In 2000, Janiszewski was ranked 20,642nd most popular surname, but by 2010 it dropped to the 22,246th position, marking a decrease of 7.77%. The count for this surname also dropped from 1,192 in 2000 to 1,159 in 2010, indicating a 2.77% decrease. The proportion per 100,000 people in the population also fell by 11.36%, from 0.44 to 0.39.

20002010Change
Rank#20,642#22,246-7.77%
Count1,1921,159-2.77%
Proportion per 100k0.440.39-11.36%

Race and Ethnicity of people with the last name Janiszewski

The ethnic identity associated with the surname Janiszewski underwent some changes as well from 2000 to 2010 according to the Decennial U.S. Census. Predominantly identified as White (with 97.90% in 2000 and 96.98% in 2010), there was a negligible decrease of 0.94% over the decade. There were no recorded individuals identifying as Black, Asian/Pacific Islander, or American Indian and Alaskan Native in 2000, but by 2010, there was a slight emergence of people identifying as Asian/Pacific Islander with the surname. People identifying as two or more races decreased by 14.85%, while the Hispanic identity saw a significant increase of 95.24%.

20002010Change
White97.9%96.98%-0.94%
Hispanic0.84%1.64%95.24%
Two or More Races1.01%0.86%-14.85%
Asian/Pacific Islander0%0.52%0%
Black0%0%0%
American Indian and Alaskan Native0%0%0%