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

Janczewski, 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 Janczewski surname is from the 2010 census data.

Popularity of Janczewski in America

Janczewski is the 61745th most popular name in America based on the data we have collected from the U.S. Census Bureau.

The Janczewski surname appeared 325 times in the 2010 census and if you were to sample 100,000 people in the United States, approximately 0 people would have the surname Janczewski.

We can also compare 2010 data for Janczewski 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 Janczewski

The surname Janczewski originated in Poland and is a Polish name derived from the personal name Jan, which is a Polish variant of the biblical name John. The suffix "-czewski" is a common Polish patronymic, meaning "son of." Therefore, Janczewski literally means "son of Jan."

The earliest recorded instances of the surname Janczewski date back to the 16th century in Poland. The name was particularly prevalent in the regions of Greater Poland, Mazovia, and Silesia. It is believed to have originated as a descriptive name to distinguish individuals from different families or clans.

In the 19th century, the Janczewski surname appeared in various historical records and documents. For instance, Józef Janczewski (1768-1838) was a Polish nobleman and landowner who played a significant role in the Kościuszko Uprising against Russian and Prussian forces.

Another notable bearer of the name was Franciszek Janczewski (1847-1914), a Polish botanist and professor at the University of Kraków. He made significant contributions to the study of plant anatomy and morphology.

In the 20th century, Stanisław Janczewski (1901-1971) was a Polish poet and writer known for his works depicting the lives of ordinary people in rural Poland. His poetry collections, such as "Gałązka rozmarynu" (A Sprig of Rosemary), gained widespread recognition.

The Janczewski surname has also been associated with several places in Poland, including the village of Janczewo in the Warmian-Masurian Voivodeship and the town of Janczewice in the Łódź Voivodeship. These place names likely derived from the surname itself or vice versa.

Throughout history, the spelling of the surname has remained relatively consistent, although variations such as Janczewski, Janczewsky, and Janczevski have been recorded. However, the core form of Janczewski has remained the most prevalent.

Race and ethnic origin of people with the last name Janczewski

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

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 Janczewski 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 Janczewski 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 Janczewski was researched and written by our team of onomatology and genealogy experts.

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

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