Find out how popular the last name DeMong is in the United States and learn more about the meaning, history, and race and ethnic origin of people in America who are named DeMong.
A surname derived from the French "de Mont," referring to someone from a mountainous region.
DeMong, 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 DeMong surname is from the 2000 census data.
DeMong is the 150436th most popular name in America based on the data we have collected from the U.S. Census Bureau.
The DeMong surname appeared 100 times in the 2000 census and if you were to sample 100,000 people in the United States, approximately 0 people would have the surname DeMong.
The surname Demong has its origins in France, specifically in the Bretagne (Brittany) region. The earliest references to this surname can be traced back to the medieval period, around the 12th and 13th centuries. Its spelling and form have evolved over the centuries, influenced by regional dialects and the changing orthographic conventions of the French language.
The name Demong is likely derived from the Old Breton word "monk" (monachus in Latin), referring to a religious recluse or monk. This was a common occupational surname in the medieval period, often indicating a person associated with a monastery. In its early forms, the name may have also been influenced by various phonetic spellings in the local dialects, such as Monc, Moigne, or de Monc.
Historical records indicate that the name appeared in several manuscripts and registries during the Middle Ages. One of the earliest recorded instances of the surname Demong is found in the Cartulary of Redon, a collection of charters from the Abbey of Redon in Brittany, around the year 1180. These documents often mentioned local notables and landowners, among whom Guillaume Demong was recorded as an influential landholder.
The Demong name saw variations and slightly different spellings in different regions. For example, in some areas of Brittany, it was spelled as de Mong or de Monc. By the 16th century, a settled form of the surname Demong emerged and was more consistently recorded in parish records and civil documents.
In the 17th and 18th centuries, notable figures with the surname Demong began to emerge. One prominent individual was Pierre Demong (1662-1734), a well-known local magistrate in Rennes, who played a significant role in the administration of justice in the region. His contributions to the local judicial system are documented in the archives of the Parlement of Brittany.
Another notable person was Jean-Baptiste Demong (1745-1801), a scholar and philosopher, who wrote several treatises on enlightenment ideals and was involved with key intellectual movements in Paris during that time. His works were influential in spreading progressive thoughts and ideas, notably those that inspired later political reforms.
Moving forward into the 19th century, the name Demong became associated with maritime professions, particularly in the port city of Nantes. François Demong (1810-1877), a renowned shipbuilder, made significant contributions to the naval architecture field and helped modernize the shipyards during a period of intense industrial change and expansion.
Another significant figure bearing the surname was Louis Demong (1842-1908), an early pioneer in the field of electrical engineering. His innovations and research were instrumental in the development of early electrical grids and systems within France, influencing many subsequent technological advancements in electricity distribution.
Jacques Demong (1875-1952) gained recognition in the field of fine arts as a celebrated sculptor. His works, often reflecting the Art Nouveau style, were showcased in various exhibitions and galleries across Europe, leaving a lasting impact on the artistic movements of his time.
Throughout history, the Demong surname has been carried by individuals who contributed to various fields, from philosophy and law to maritime industry and the arts. The legacy of this name continues to be remembered through historical documents, artistic works, and scholarly contributions spanning several centuries.
We also have some data on the ancestry of people with the surname DeMong.
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:
For the most recent 2000 census data, the race/ethnic origin breakdown for DeMong was:
Race/Ethnicity | Percentage | Total Occurrences |
---|---|---|
Non-Hispanic White Only | 97.00% | 97 |
Non-Hispanic Black Only | (S)% | (S) |
Non-Hispanic Asian and Pacific Islander Only | 0.00% | 0 |
Non-Hispanic American Indian and Alaskan Native | 0.00% | 0 |
Non-Hispanic of Two or More Races | (S)% | (S) |
Hispanic Origin | 0.00% | 0 |
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.
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 DeMong was researched and written by our team of onomatology and genealogy experts.
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<a href="http://namecensus.com/last-names/demong-surname-popularity/">DeMong last name popularity, history, and meaning</a>
"DeMong last name popularity, history, and meaning". NameCensus.com. Accessed on June 16, 2025. http://namecensus.com/last-names/demong-surname-popularity/.
"DeMong last name popularity, history, and meaning". NameCensus.com, http://namecensus.com/last-names/demong-surname-popularity/. Accessed 16 June, 2025
DeMong last name popularity, history, and meaning. NameCensus.com. Retrieved from http://namecensus.com/last-names/demong-surname-popularity/.
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