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

Castill, 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 Castill surname is from the 2010 census data.

Popularity of Castill in America

Castill is the 99378th most popular name in America based on the data we have collected from the U.S. Census Bureau.

The Castill surname appeared 182 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 Castill.

We can also compare 2010 data for Castill 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 Castill

The surname Castill is of Spanish origin and can be traced back to the medieval period. It is derived from the Spanish word "castillo," meaning "castle." The name likely originated in regions of Spain where there were significant fortifications or castles, such as Castilla-La Mancha or Castilla y León.

The earliest recorded instances of the surname Castill can be found in various historical documents from the 13th and 14th centuries. It appears in records related to land ownership, military service, and ecclesiastical appointments, indicating that individuals bearing this name held positions of prominence during that era.

One notable historical reference to the name Castill is found in the "Libro de la Montería" (Book of the Hunt), a 14th-century manuscript commissioned by King Alfonso XI of Castile. This text mentions several individuals with the surname Castill who were involved in the royal hunts and falconry expeditions organized by the king.

The earliest known bearer of the surname Castill is Pedro de Castill, a nobleman who lived in the late 13th century and served as a knight in the court of King Sancho IV of Castile. Another prominent figure was Juana de Castill, a noblewoman born in 1412, who played a significant role in the political intrigues of the Castilian court during the reign of King Juan II.

In the 15th century, the surname Castill gained further prominence with the birth of Diego de Castill (1450-1521), a Spanish explorer and conquistador known for his expeditions to the Caribbean and Central America. His exploits and conquests in the New World contributed to the spread of the Castill name beyond the borders of Spain.

During the 16th century, the Castill surname was associated with several notable figures in the arts and literature. One such individual was Juan de Castill (1515-1572), a Spanish playwright and poet who was part of the literary circle known as the "Spanish Renaissance." His works, including plays and sonnets, were widely acclaimed during his lifetime.

In the 17th century, the surname Castill gained recognition in the realm of religion with the life of María de Castill (1616-1688), a Spanish nun and mystic known for her spiritual writings and devotion to the Virgin Mary. Her writings and teachings influenced the religious life of her time and contributed to the spread of the Castill name within the Catholic Church.

Throughout its history, the surname Castill has been carried by individuals from various walks of life, including nobility, military leaders, explorers, artists, and religious figures. Its origins can be traced back to the medieval period in Spain, where it was closely associated with the concept of castles and fortifications, reflecting the prominent role played by these structures in the country's history.

Race and ethnic origin of people with the last name Castill

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

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

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

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