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

Casimiro, 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 Casimiro surname is from the 2010 census data.

Popularity of Casimiro in America

Casimiro is the 14669th most popular name in America based on the data we have collected from the U.S. Census Bureau.

The Casimiro surname appeared 2,027 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 Casimiro.

We can also compare 2010 data for Casimiro 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 Casimiro

The surname Casimiro is of Spanish origin, dating back to the medieval period in Spain. It is derived from the Latin name "Casimirus," which itself is a combination of the Slavic elements "kaz" meaning "to destroy" and "mir" meaning "peace." This name was likely brought to Spain during the Reconquista, when various peoples from across Europe joined the Christian forces fighting against the Moors.

One of the earliest recorded instances of the Casimiro surname can be found in the Census of Aragon from 1495, which lists a Pedro Casimiro residing in the town of Teruel. In the 16th century, records show a Juan Casimiro who was a prominent landowner in the region of Andalusia. His family's holdings included the estate of Cortijo de Casimiro, which likely took its name from this ancestor.

During the Age of Exploration, several individuals bearing the Casimiro surname were involved in Spain's colonization efforts in the Americas. Notable among these was Diego Casimiro, a conquistador who accompanied Hernán Cortés on his expedition to Mexico in 1519. Another was Alonso Casimiro, a Jesuit missionary who traveled to Paraguay in the early 1600s and helped establish several Guaraní missions there.

In the 17th century, the Casimiro name appears in connection with the Spanish Golden Age of art and literature. Miguel Casimiro was a renowned playwright and poet who was a contemporary of Lope de Vega and Calderón de la Barca. His most famous work was the 1632 play "El Caballero de Olmedo."

Moving into the 18th century, the Casimiro surname gained prominence in the military sphere. General José Casimiro led Spanish forces during the War of the Quadruple Alliance against France, Britain, and the Dutch Republic from 1718 to 1720. He is celebrated for his decisive victory at the Battle of Cape Passaro in 1718.

As the Spanish Empire expanded its reach across the globe, the Casimiro name traveled far and wide. One notable figure was Manuel Casimiro, a sailor and explorer from Cádiz who accompanied the 1779 expedition of Juan Francisco de la Bodega y Quadra to the Pacific Northwest of North America. He is credited with helping map and chart several coastal areas that would later become part of British Columbia and Alaska.

Race and ethnic origin of people with the last name Casimiro

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

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

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

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