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

Castonguay, 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 Castonguay surname is from the 2010 census data.

Popularity of Castonguay in America

Castonguay is the 14257th most popular name in America based on the data we have collected from the U.S. Census Bureau.

The Castonguay surname appeared 2,102 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 Castonguay.

We can also compare 2010 data for Castonguay 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 Castonguay

The surname Castonguay originated in the province of Quebec, Canada in the early 17th century. It is derived from the French words "château" meaning castle and "neuf" meaning new, indicating it may have referred to someone living near a new castle or settlement. The name first appeared in records of French settlers in the Quebec region around 1635.

One of the earliest recorded instances of the Castonguay name was Jacques Castonguay, who was born in 1632 in La Rochelle, France and later immigrated to New France (now Quebec) in 1657. He married Marie Boucher in 1661 and they had several children, helping to establish the Castonguay lineage in Canada.

In the late 17th century, the name appeared in the census records of the Seigneurie de Beaupré region near Quebec City. A notable early bearer of the name was Pierre Castonguay, born in 1685, who was a farmer and landowner in this area.

Throughout the 18th and 19th centuries, the Castonguay name spread across Quebec and into other parts of Canada as the family grew. One prominent individual was Louis Castonguay, born in 1804, who was a successful merchant and businessman in Montreal.

Another noteworthy Castonguay was Rodolphe Castonguay, born in 1859, who was a lawyer and politician in Quebec. He served as a member of the Legislative Assembly of Quebec from 1892 to 1897.

In the early 20th century, Édouard Castonguay, born in 1877, was a renowned architect who designed several notable buildings in Quebec City, including the Château Frontenac hotel.

While the Castonguay name is most prevalent in Quebec and other parts of French Canada, it has also spread to other regions through immigration and descendants of the original Castonguay families.

Race and ethnic origin of people with the last name Castonguay

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

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

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

Reference this page

We spend a lot of resources downloading, cleaning, merging, and formatting the data that is shown on the site.

If you found the data or information on this page useful in your research, please use the tool below to properly cite or reference Name Census as the source. We appreciate your support!