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

St. Hilaire, 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 St. Hilaire surname is from the 2010 census data.

Popularity of St. Hilaire in America

St. Hilaire is the 11172nd most popular name in America based on the data we have collected from the U.S. Census Bureau.

The St. Hilaire surname appeared 2,831 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 St. Hilaire.

We can also compare 2010 data for St. Hilaire 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 St. Hilaire

The surname STHILAIRE originated in France during the medieval period. It is believed to have derived from the Old French words "saint" and "hilaire," meaning "Saint Hilary." This suggests that the name may have initially been associated with a place or region dedicated to the Catholic saint of the same name.

One of the earliest known records of the STHILAIRE surname can be found in the Domesday Book, a comprehensive survey of land ownership and taxation conducted in England in 1086. This reference provides evidence that the name had already spread beyond France by the late 11th century.

During the Middle Ages, the STHILAIRE name appeared in various forms, including Sainthilaire, Saintehilaire, and Saintehillaire, reflecting the influence of regional dialects and variations in spelling conventions.

Notable individuals with the STHILAIRE surname include:

1. Jean-Baptiste STHILAIRE (1588-1658), a French military officer who served during the Thirty Years' War.
2. Marie-Claire STHILAIRE (1721-1798), a French nun and educator known for her work in establishing schools for girls.
3. Louis STHILAIRE (1795-1867), a French explorer and naturalist who documented the flora and fauna of South America.
4. Émile STHILAIRE (1834-1912), a French politician and journalist who served as a deputy in the National Assembly.
5. Marguerite STHILAIRE (1881-1963), a French artist renowned for her distinctive impressionist landscapes.

The STHILAIRE name has also been associated with various place names throughout history. For example, the village of Saint-Hilaire-du-Harcouët in Normandy, France, derives its name from the same origins as the surname, reflecting the region's ties to the Catholic saint.

While the STHILAIRE surname may have evolved over time and spread across different regions, its roots can be traced back to medieval France and its connection to the veneration of Saint Hilary.

Race and ethnic origin of people with the last name St. Hilaire

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

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

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

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