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

Casimir, 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 Casimir surname is from the 2010 census data.

Popularity of Casimir in America

Casimir is the 15217th most popular name in America based on the data we have collected from the U.S. Census Bureau.

The Casimir surname appeared 1,936 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 Casimir.

We can also compare 2010 data for Casimir 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 Casimir

The surname Casimir originated from the Polish regions, with its roots tracing back to the 12th century. It is derived from the Old Polish word "Kazimierz," which means "to destroy peace" or "to destroy harmony." This name was originally a title or epithet bestowed upon a historical figure known for his warlike exploits or disruptive actions.

One of the earliest documented references to the name Casimir can be found in the chronicles of the Polish monarchy, where it was used to describe a prince or ruler who was renowned for his military conquests and territorial expansions. The name gained popularity among the nobility and eventually became a hereditary surname, passed down through generations of Polish families.

In the 13th century, a prominent figure named Casimir I, also known as Casimir the Restorer, ruled as the Grand Duke of Poland from 1034 to 1058. His reign was marked by the restoration of the Polish kingdom after a period of political turmoil, and he is widely regarded as one of the most influential rulers in Polish history.

Another notable bearer of the surname Casimir was Casimir III, also known as Casimir the Great, who reigned as the King of Poland from 1333 to 1370. He is celebrated for his efforts in strengthening the Polish economy, promoting education, and expanding the territory of the kingdom through diplomatic means.

In the 15th century, the surname Casimir was recorded in the annals of the Teutonic Knights, a Catholic military order that played a significant role in the Northern Crusades and the colonization of Prussia. A knight named Casimir von Liebenstein is mentioned in these records, having participated in various military campaigns and battles.

During the Renaissance period, a Polish nobleman named Casimir Jagiellończyk, born in 1458, gained prominence as a patron of the arts and a supporter of the humanist movement. He was instrumental in the establishment of several educational institutions and the promotion of cultural exchange within Europe.

In the 17th century, Casimir Leski, a Polish mathematician and astronomer, made significant contributions to the field of astronomy. He is best known for his work on celestial mechanics and his calculations of planetary orbits, which helped advance the understanding of the motions of celestial bodies.

These are just a few examples of notable individuals who bore the surname Casimir throughout history. The name has since spread beyond its Polish origins and can be found in various parts of the world, reflecting the migrations and cultural exchanges that have occurred over the centuries.

Race and ethnic origin of people with the last name Casimir

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

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

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

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