Louidor
A surname derived from a French place name or occupation related to locks or keys.
According to the 2010 US Census Bureau surname tables, roughly 274 Americans carry the last name Louidor. That puts it at #76,768 in the national surname ranking, appearing at a frequency of 0.08 per 100,000 people (about 1 in 1,250,928 residents).
This page is the full Name Census profile for the Louidor surname. You will find the Census Bureau frequency data, an ancestry and ethnicity breakdown based on self-reported demographics, the name's meaning and origin where available, and answers to the most common questions people ask about this surname.
Bearers in the US
274
1 in 1,250,928
Census rank
#76,768
2010 decennial data
Per 100,000
0.1
Frequency rate
Recorded bearers
250
very rare in the US
Popularity narrative
The Census Bureau recorded 250 bearers of the surname Louidor in its 2010 decennial surname file. At a rate of 0.08 per 100,000 residents, it holds the 76768th position in the national surname ranking.
Among Census respondents with the surname Louidor, the largest self-reported group is Black at 96.8%.
Origin
Meaning and origin of Louidor
The surname Louidor originated in France during the medieval period. It is believed to have derived from the Old French words "lou" and "idor," which roughly translate to "wolf" and "idol" or "wolf idol." This suggests that the name may have initially referred to someone who worshipped or revered wolves, perhaps as part of a pagan belief system.
The earliest known record of the Louidor name dates back to the 13th century, where it appears in a collection of legal documents from the Normandy region of northern France. One notable entry mentions a "Jean Louidor" who was a landowner and minor nobleman in the village of Vaudreuil.
In the late 14th century, a variant spelling of the name, "Loudoir," can be found in the tax records of the Île-de-France region, which includes Paris. This suggests that the name had spread beyond its original Norman roots and become more widely established across northern France.
During the Renaissance period, a Louidor family is mentioned in the writings of the French philosopher and essayist Michel de Montaigne. He recounts a visit to their estate in the Bordeaux region, where they were prominent vintners and landowners.
One of the earliest known bearers of the Louidor name was Pierre Louidor, born in 1512 in the town of Arras in northern France. He was a successful merchant and trader who established business connections throughout Europe.
Another notable figure was Jeanne Louidor, a nun who lived in the late 16th century. She was renowned for her piety and charitable works, and is said to have founded a convent in the city of Lyon.
In the 17th century, a man named Jacques Louidor gained fame as a skilled architect and engineer. He was responsible for the design and construction of several notable buildings and bridges in Paris and the surrounding region.
The 18th century saw the birth of François Louidor, a celebrated painter and portraitist who worked in the court of King Louis XV. His works can still be seen in various museums and galleries throughout France.
During the French Revolution of the late 18th century, a revolutionary leader named Antoine Louidor played a significant role in the uprising against the monarchy. He was a member of the Jacobin club and a vocal advocate for the rights of the common people.
Demographics
Ancestry and ethnicity for Louidor
Among Census respondents with the surname Louidor, the largest self-reported group is Black at 96.8%.
The bar chart below shows how Louidor bearers described their own race and ethnicity on the 2010 Census form. The Census Bureau groups responses into six broad categories: White, Black or African American, Hispanic or Latino, Asian and Pacific Islander, American Indian and Alaska Native, and Two or More Races. When a category has too few respondents for a given surname, the Bureau suppresses the figure to protect individual privacy, which is why some names show fewer than six slices.
Keep in mind that these are self-reported numbers. A person's surname does not determine their race or ethnicity, and the distribution you see here reflects the specific population who happened to carry the Louidor surname at the time of the 2010 Census, not any inherent property of the name itself.
- Black or African American96.8%
- Unknown or suppressed3.2%
Year on year
2000 vs 2010 Census
How has the Louidor surname changed between Census years? The chart shows bearer count side by side, and the table compares rank, count, and frequency.
Census year comparison
| Metric | 2000 | 2010 | Change |
|---|---|---|---|
| Rank | #115,489 | #76,768 | 33.5% |
| Count | 140 | 250 | 78.6% |
| Per 100K | 0.05 | 0.08 | 60.0% |
Between the 2000 and 2010 Census, the number of Louidor bearers went from 140 to 250 (+78.6% change). The surname moved up 38,721 positions in the national ranking, going from #115,489 to #76,768.
FAQ
Louidor surname: questions and answers
How common is the last name Louidor?
The surname Louidor holds position #76,768 in the US Census Bureau's surname ranking, with an estimated 274 living bearers. It occurs at a rate of 0.08 per 100,000 Americans.
What is the ethnic background of the Louidor surname?
Among Census respondents with the surname Louidor, the largest self-reported group is Black at 96.8%. These figures come from the 2010 Census Bureau surname tables, based on how respondents described their own race and ethnicity.
Where does this surname data come from?
All surname statistics on Name Census are drawn from the US Census Bureau's decennial surname frequency tables. These tables list every surname that appeared 100 or more times in the 2010 Census, along with a frequency rate and self-reported demographic breakdown. You can read the full explanation on our methodology page.