Find out how popular the last name Janowski is in the United States and learn more about the meaning, history, and race and ethnic origin of people in America who are named Janowski.

Janowski, like all of the last names we have data for, is identified by the U.S. Census Bureau as a surname which has more than 100 occurrences in the United States in the Decennial Census survey. The most recent statistics we have for the Janowski surname is from the 2010 census data.

Popularity of Janowski in America

Janowski is the 14558th most popular name in America based on the data we have collected from the U.S. Census Bureau.

The Janowski surname appeared 2,047 times in the 2010 census and if you were to sample 100,000 people in the United States, approximately 1 people would have the surname Janowski.

We can also compare 2010 data for Janowski to data from the previous census in 2000. The table below contains all of the statistics for both years in a side-by-side comparison.

The history of the last name Janowski

The surname Janowski originated in Poland in the late medieval period. It likely derived from the Polish masculine given name Jan, a variant of the name John. The suffix "-owski" indicates a place of origin or possession.

Janowski is thought to have first appeared as a surname in the 14th century, referring to someone from a particular village or estate. Early records show variations in spelling such as Janowsky, Janovsky, and Janowicz.

One of the earliest known bearers of the name was Jakub Janowski, a landowner and nobleman mentioned in a 1412 document from the town of Krakow. Another early reference is Marcin Janowski, a merchant from the city of Gdansk, listed in a trade register from 1489.

In the 16th century, the Janowski name appeared in the Metryka Koronna, a collection of historical records from the Polish-Lithuanian Commonwealth. The 1578 entry recorded the marriage of Piotr Janowski and Anna Wierzbicka.

Notable figures with the Janowski surname include Ludwik Janowski (1878-1941), a Polish painter and art professor known for his landscapes and portraits. Teodor Janowski (1854-1944) was a renowned architect who designed several iconic buildings in Warsaw.

Other historical bearers of the name are Zygmunt Janowski (1888-1920), a Polish military officer and cavalry commander who fought in World War I, and Konstanty Janowski (1876-1932), a influential chess master and one of the world's top players in the early 20th century.

The village of Janowice in southwestern Poland likely derived its name from early residents with the Janowski surname, reflecting the common practice of using surnames to identify places of origin.

Race and ethnic origin of people with the last name Janowski

We also have some data on the ancestry of people with the surname Janowski.

The below race categories are the modified race categories used in the Census Bureau's population estimates program. All people were categorized into six mutually exclusive racial and Hispanic origin groups:

1. White only
2. Black only
3. American Indian and Alaskan Native only
4. Asian and Pacific Islander only
5. Hispanic
6. Two or More Races

For the most recent 2010 census data, the race/ethnic origin breakdown for Janowski was:

Note: Any fields showing (S) means the data was suppressed for privacy so that the data does not in any way identify any specific individuals.

Since we have data from the previous census in 2000, we can also compare the values to see how the popularity of Janowski has changed in the 10 years between the two census surveys.

Data source

The last name data and ethnic breakdown of last names is sourced directly from the Decennial Census survey, conducted every 10 years by the United States Census Bureau.

The history and meaning of the name Janowski was researched and written by our team of onomatology and genealogy experts.

If you have a correction or suggestion to improve the history of Janowski, please contact us.

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