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

Sinnott, 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 Sinnott surname is from the 2010 census data.

Popularity of Sinnott in America

Sinnott is the 10871st most popular name in America based on the data we have collected from the U.S. Census Bureau.

The Sinnott surname appeared 2,931 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 Sinnott.

We can also compare 2010 data for Sinnott 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 Sinnott

The surname Sinnott has its origins in Ireland, where it was first recorded in the 12th century. It is derived from the Gaelic word "sionnach," meaning "fox," which suggests that the name may have originated as a nickname for someone who was considered cunning or sly.

The earliest recorded instance of the name is found in the Annals of the Four Masters, a chronicle of medieval Irish history compiled in the 17th century. The annals mention a Sinnott family from County Wexford, who were prominent landowners in the area.

During the Norman invasion of Ireland in the 12th century, many Sinnott family members were granted lands in counties Wexford, Waterford, and Kilkenny. Historical records show that in 1192, a man named Adam de Synot was granted lands in Wexford by the Earl of Pembroke.

The variant spelling "Synott" is found in several ancient Irish manuscripts, including the Book of Leinster, a 12th-century literary collection. This spelling suggests that the name may have been pronounced differently in earlier times.

One of the earliest notable figures bearing the name was Walter Sinnott, a 14th-century Bishop of Leighlin who played a significant role in the church's administration in Ireland during his time.

In the 16th century, Sinnott families were prominent landowners in County Wexford, with their ancestral seat located at Ballybrennan. One notable member of the family was Sir John Sinnott (1547-1619), who served as a Member of Parliament and was knighted by King James I.

Another notable figure was Edmond Sinnott (1650-1737), an Irish Catholic priest who was appointed as the Vicar Apostolic of the Diocese of Dublin in 1718. He played a crucial role in the preservation of Catholicism in Ireland during the Penal Laws.

During the Irish Rebellion of 1798, several members of the Sinnott family were actively involved in the struggle for Irish independence. One such figure was John Sinnott (1773-1798), who was executed for his role in the rebellion.

In the 19th century, James Sinnott (1816-1900) was a prominent Irish politician who served as a Member of Parliament for Wexford Borough from 1865 to 1900. He was a strong advocate for Irish Home Rule and played a significant role in Irish politics during his time.

Race and ethnic origin of people with the last name Sinnott

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

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

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

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