2010
#133,863
National surname rank
Recorded bearers 126
First available Census row
Per 100,000 0.04
Very Rare Last name
Momperousse
A French surname derived from the Middle French "mombre", meaning to mutter or grumble.
According to the 2020 US Census Bureau surname tables, roughly 133 Americans carry the last name Momperousse. That puts it at #145,028 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,577,100 residents).
This page is the full Name Census profile for the Momperousse surname. You will find the Census Bureau frequency data, a multi-census history view, 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
133
1 in 2,577,100
Census rank
#145,028
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
116
very rare in the US
Popularity narrative
The Census Bureau recorded 116 bearers of the surname Momperousse in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 145028th position in the national surname ranking.
Among Census respondents with the surname Momperousse, the largest self-reported group is Black at 81.0%. The next largest groups are Hispanic (6.9%) and Two or More Races (6.9%).
Origin
Meaning and origin of Momperousse
The surname Momperousse originated in the Normandy region of northern France during the medieval period. It derives from the Old French words "mome" and "rousse," which together translate to "red-faced person." This suggests that the name was initially used as a descriptive nickname for someone with a ruddy complexion.
One of the earliest recorded instances of the Momperousse name can be found in the 13th-century Cartulaire de l'Abbaye de Saint-Étienne de Fontenay, a medieval manuscript containing records of land transactions and legal agreements in Normandy. The name appears in this document spelled as "Momperouse."
In the 15th century, a man named Jean Momperousse is mentioned in the municipal records of Rouen, the historical capital of Normandy. He was a merchant and landowner who lived from approximately 1420 to 1488.
During the 16th century, the Momperousse family established themselves in the town of Dieppe, also in Normandy. A notable member was Jacques Momperousse, a sea captain and explorer who was born in Dieppe around 1530. He led several voyages to the Americas and is believed to have been among the first Europeans to establish contact with the indigenous Inuit people of Canada.
In the 17th century, the Momperousse name spread to other parts of France, including the Poitou region in the west. A prominent figure from this era was Pierre Momperousse, a lawyer and political activist who was born in Poitiers in 1645. He was a vocal critic of the French monarchy and was involved in the Fronde, a series of civil wars that took place during the minority of King Louis XIV.
Another notable Momperousse was Marie-Thérèse Momperousse, a Parisian writer and playwright who lived from 1730 to 1795. She was a member of several literary salons and wrote several plays that were performed in the theaters of Paris during the latter part of the 18th century.
While the Momperousse name has its roots in medieval Normandy, it eventually spread across France and even to other parts of Europe and the Americas through migration and exploration. However, it remains a relatively rare surname, particularly outside of France.
Demographics
Ancestry and ethnicity for Momperousse
Among Census respondents with the surname Momperousse, the largest self-reported group is Black at 81.0%. The next largest groups are Hispanic (6.9%) and Two or More Races (6.9%).
The bar chart below shows how Momperousse bearers described their own race and ethnicity on the 2020 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.
Percentages are shown for every Census year so the breakdown stays comparable over time. When the source file also includes raw headcounts, Name Census shows those alongside the percentages in the legend.
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 Momperousse surname at the time of the 2020 Census, not any inherent property of the name itself.
- Black or African American81.0% · 94
- Hispanic or Latino6.9% · 8
- Two or more races6.9% · 8
- White3.4% · 4
- Asian and Pacific Islander0.9% · 1
- American Indian and Alaska Native0.9% · 1
Timeline
Historical Census data for Momperousse
Momperousse appears in 2 published Census surname files: 2010, 2020. The cards below show how the name's rank and bearer count changed across each release.
2020
#145,028
National surname rank
Recorded bearers 116
-10 bearers (-7.9%)
Per 100,000 0.04
Rank movement Down 11,165 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2010 | #133,863 | 126 | 0.04 | First available Census row | First available Census row |
| 2020 | #145,028 | 116 | 0.04 | -10 bearers (-7.9%) | Down 11,165 places |
For 2020, the Census Bureau published race and Hispanic-origin columns as counts rather than percentages. Name Census converts those counts back into shares so the ancestry section stays comparable with the older surname files.
Year on year
2010 vs 2020 Census
How has the Momperousse surname changed between Census years? The chart shows bearer count side by side, and the table compares rank, count, and frequency.
Census year comparison
20102020
| Metric | 2010 | 2020 | Change |
|---|---|---|---|
| Rank | #133,863 | #145,028 | -8.3% |
| Count | 126 | 116 | -7.9% |
| Per 100K | 0.04 | 0.04 | -3.0% |
Between the 2010 and 2020 Census, the number of Momperousse bearers went from 126 to 116 (-7.9% change). The surname moved down 11,165 positions in the national ranking, going from #133,863 to #145,028.
FAQ
Momperousse surname: questions and answers
How many people in the U.S. have the surname Momperousse?
Name Census estimates that about 133 living Americans carry the surname Momperousse. Using the current population baseline, that works out to roughly 1 in 2,577,100 residents.
How common is Momperousse?
Momperousse ranks #145,028 in the 2020 Census surname tables and is classified on this site as "Very Rare." The Census recorded the name at a frequency of 0.04 per 100,000 residents, which is about 0 people out of every 100,000.
How many people with this surname were counted in the Census?
The raw 2020 Census file counted 116 people with the surname Momperousse. That is different from the site's living-bearer estimate (133), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 0.04 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 0.04 per 100,000 means that if you picked a random group of 100,000 U.S. residents, you would expect about 0 of them to have the surname Momperousse.
Has Momperousse become more or less common over time?
Between 2010 and 2020, the surname Momperousse went from 126 recorded bearers to 116. That is a decrease of 10 (-7.9%). In the national ranking it fell from #133,863 to #145,028.
What does the Census say about the background of Momperousse?
Among Census respondents with the surname Momperousse, the largest self-reported group is Black at 81.0%. The next largest groups are Hispanic (6.9%) and Two or More Races (6.9%). These figures come from the 2020 Census Bureau surname tables, based on how respondents described their own race and ethnicity.
Which group reports this surname most often?
Black is the largest self-reported group for the surname Momperousse in the 2020 Census, accounting for 81.0% (94 people in the source table).
What is the full ancestry breakdown?
Momperousse appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are Black (81.0%), Hispanic (6.9%), Two or More Races (6.9%). For 2020, the source file also published raw headcounts for each group, which is why this page can show both percentages and counts in the ancestry section.
Is this page using the latest Census data?
Yes. This page is using the latest surname file currently loaded on Name Census, which is 2020. The historical section above also keeps any older Census surname entries we have for Momperousse (2010, 2020).
Does the Census include every surname?
No. The Census Bureau only publishes surnames that appeared at least 100 times in a given decennial Census. That means very rare surnames are excluded entirely, and a surname can appear in one Census release but disappear from a later one if it falls below the reporting threshold.
Why don't the ancestry percentages always add up to exactly 100%?
There are two main reasons: rounding and suppression. The Census Bureau rounds published values, and it may suppress very small cells to protect privacy. For 2020, the Bureau also published raw group counts rather than direct percentages, so Name Census converts those counts back into shares for comparability across census years.
What does Momperousse mean?
A French surname derived from the Middle French "mombre", meaning to mutter or grumble. The fuller origin note on this page goes into more detail.
Where does the surname data come from?
All surname statistics on Name Census are drawn from the US Census Bureau's decennial surname frequency tables. These files list every surname that appeared 100 or more times in the 2020 Census, along with a count, a per-100,000 rate, and a self-reported demographic breakdown. You can read the full explanation on our methodology page.
How does Name Census estimate living bearers?
For surnames, Name Census does not age cohorts the way it does for first names. Instead, it takes the Census Bureau's published frequency for Momperousse (0.04 per 100,000) and applies that rate to the current U.S. resident population to estimate how many living Americans have the surname today.
How many people are called Momperousse?
Our sister site HowManyOfMe.org answers how many Americans have the surname Momperousse at a glance, with the living-bearer count up front.