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

Duplessis, 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 Duplessis surname is from the 2010 census data.

Popularity of Duplessis in America

Duplessis is the 10536th most popular name in America based on the data we have collected from the U.S. Census Bureau.

The Duplessis surname appeared 3,044 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 Duplessis.

We can also compare 2010 data for Duplessis 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 Duplessis

The surname DUPLESSIS originated in France during the Middle Ages. It is derived from the Old French term "du plessis", which translates to "of the manor house or enclosure". This suggests that the name was initially given to someone who lived near or owned a manorial residence surrounded by a fence or hedge.

DUPLESSIS is a locational surname, meaning it was originally taken from the name of a specific place. The earliest recorded instance of the name appears in the Domesday Book of 1086, which was a survey commissioned by William the Conqueror to record the landholdings in England after the Norman Conquest. This indicates that the name was likely brought to England from France during this period.

One of the earliest recorded individuals with the surname DUPLESSIS was Robert du Plessis, a Norman nobleman who fought alongside William the Conqueror at the Battle of Hastings in 1066. He was granted lands in Essex, England, as a reward for his service.

In the 13th century, a branch of the DUPLESSIS family settled in the Brittany region of northwestern France. One notable member was Armand Jean du Plessis, Duke of Richelieu (1585-1642), who served as the Chief Minister to King Louis XIII of France. He played a significant role in strengthening the power of the monarchy and centralizing the French state.

Another prominent figure with the DUPLESSIS surname was Jean du Plessis-Richelieu (1696-1788), a French Catholic cardinal and diplomat who served as the Secretary of State for Foreign Affairs under King Louis XV. He was instrumental in negotiating the Treaty of Paris in 1763, which ended the Seven Years' War between France and Britain.

In the 19th century, Edmond Rousseau du Plessis-Grénédan (1800-1865) was a French naval officer and explorer who participated in several expeditions to the Arctic regions. He also served as the Governor of French Guiana from 1855 to 1858.

One of the most notable individuals with the surname DUPLESSIS in modern times was Yvon Duplessi (1908-1976), a Canadian politician who served as the Premier of Quebec from 1936 to 1939 and again from 1944 to 1959. He was a strong proponent of Quebec nationalism and played a crucial role in shaping the province's political landscape.

Race and ethnic origin of people with the last name Duplessis

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

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

If you have a correction or suggestion to improve the history of Duplessis, 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!