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

Janowicz, 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 Janowicz surname is from the 2010 census data.

Popularity of Janowicz in America

Janowicz is the 36736th most popular name in America based on the data we have collected from the U.S. Census Bureau.

The Janowicz surname appeared 608 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 Janowicz.

We can also compare 2010 data for Janowicz 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 Janowicz

The surname Janowicz is of Polish origin and dates back to the late medieval period. It is derived from the Polish given name Janusz, itself a variant of the name Jan, which is the Polish form of John. The suffix "-owicz" denotes patronymic lineage, indicating that the original bearer was the son of someone named Janusz or Jan.

The earliest recorded instances of the name Janowicz can be found in historical records from the region of Masovia in east-central Poland. The name appears in various 15th-century documents, such as land registries and municipal records from towns like Warsaw, Płock, and Ciechanów.

One notable historical figure bearing the surname Janowicz was Marcin Janowicz, a 16th-century Polish noble and landowner from the Masovian village of Janowice. He was a prominent member of the local gentry and served as a representative in the regional parliament (sejmik) in the late 1500s.

Another early bearer of the name was Jan Janowicz, a merchant and burgher from the city of Kraków, who is mentioned in guild records from the early 17th century. His son, Marcin Janowicz, followed in his footsteps and became a successful trader, establishing business connections with merchants from various parts of Europe.

In the 18th century, the Janowicz surname was also found among the Polish nobility, with families such as the Janowicz-Blaszyńscy holding estates in the Lublin region. One notable member of this family was Ignacy Janowicz-Blaszyński (1728-1801), a Polish military officer who fought in the Bar Confederation's uprising against Russian interference in Polish affairs.

Moving into the 19th century, Stanisław Janowicz (1819-1887) was a Polish journalist and writer who was actively involved in the January Uprising against the Russian Empire. His works, which included historical novels and poetry, played a role in promoting Polish national identity and culture during the period of partitions.

Another prominent individual with the Janowicz surname was Kazimierz Janowicz (1867-1927), a Polish engineer and industrialist who played a significant role in the development of the mining and metallurgical industries in the Dąbrowa Basin region of modern-day southern Poland.

Race and ethnic origin of people with the last name Janowicz

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

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

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

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