2000
#12,734
National surname rank
Recorded bearers 2,226
First available Census row
Per 100,000 0.83
Rare Last name
Simoneaux
French toponymic surname derived from a place name meaning "son of Simon" or "little Simon."
According to the 2020 US Census Bureau surname tables, roughly 2,569 Americans carry the last name Simoneaux. That puts it at #13,093 in the national surname ranking, appearing at a frequency of 0.75 per 100,000 people (about 1 in 133,419 residents).
This page is the full Name Census profile for the Simoneaux 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
2.6K
1 in 133,419
Census rank
#13,093
2020 decennial data
Per 100,000
0.7
Frequency rate
Recorded bearers
2.2K
rare in the US
Popularity narrative
The Census Bureau recorded 2,240 bearers of the surname Simoneaux in its 2020 decennial surname file. At a rate of 0.75 per 100,000 residents, it holds the 13093rd position in the national surname ranking.
Among Census respondents with the surname Simoneaux, the largest self-reported group is White at 86.0%. The next largest groups are Black (5.8%) and Hispanic (4.6%).
Origin
Meaning and origin of Simoneaux
The surname Simoneaux has its origins in France, dating back to the Middle Ages. It is believed to be a French variant of the name Simon, which is derived from the ancient Hebrew name Shim'on, meaning "he has heard" or "he has listened."
Simoneaux is thought to have originated in the region of Normandy, where it was likely a locational surname referring to a specific place or settlement. The earliest recorded instances of the name can be found in medieval French records and documents, often spelled as Simoneau or Simonneau.
One of the earliest known bearers of the name was Jean Simoneaux, a French soldier who fought in the Hundred Years' War in the 14th century. Another notable figure was Pierre Simoneaux, a merchant and landowner from the town of Caen in Normandy, who lived in the late 15th century.
During the 16th and 17th centuries, the Simoneaux name spread across France, with many families settling in the regions of Brittany, Poitou, and Anjou. Some branches of the Simoneaux family may have also migrated to other parts of Europe, such as Belgium and the Netherlands.
One prominent individual with the Simoneaux surname was Jacques Simoneaux, a French philosopher and writer born in 1638 in the city of Nantes. He was known for his works on ethics and political theory, and his writings were influential during the Enlightenment period.
In the 18th century, a notable figure was Marie-Geneviève Simoneaux, a French painter and engraver who was active in Paris between 1720 and 1750. Her works were exhibited at the Académie Royale de Peinture et de Sculpture, and she is recognized for her contributions to the Rococo art movement.
Another individual of note was Louis-François Simoneaux, a French military officer and engineer who lived from 1737 to 1819. He served in the French Army during the Revolutionary and Napoleonic Wars and was responsible for the construction of several fortifications and defensive works.
Over time, the Simoneaux surname has spread to various parts of the world, including North America, where it was likely brought by French immigrants and settlers. While the name has undergone various spelling variations, its French origins and connection to the ancient name Simon remain evident in its history and evolution.
Demographics
Ancestry and ethnicity for Simoneaux
Among Census respondents with the surname Simoneaux, the largest self-reported group is White at 86.0%. The next largest groups are Black (5.8%) and Hispanic (4.6%).
The bar chart below shows how Simoneaux 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 Simoneaux surname at the time of the 2020 Census, not any inherent property of the name itself.
- White86.0% · 1,927
- Black or African American5.8% · 129
- Hispanic or Latino4.6% · 102
- Two or more races2.2% · 50
- Asian and Pacific Islander0.8% · 19
- American Indian and Alaska Native0.6% · 13
Timeline
Historical Census data for Simoneaux
Simoneaux appears in 3 published Census surname files: 2000, 2010, 2020. The cards below show how the name's rank and bearer count changed across each release.
2010
#13,259
National surname rank
Recorded bearers 2,302
+76 bearers (+3.4%)
Per 100,000 0.78
Rank movement Down 525 places
2020
#13,093
National surname rank
Recorded bearers 2,240
-62 bearers (-2.7%)
Per 100,000 0.75
Rank movement Up 166 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #12,734 | 2,226 | 0.83 | First available Census row | First available Census row |
| 2010 | #13,259 | 2,302 | 0.78 | +76 bearers (+3.4%) | Down 525 places |
| 2020 | #13,093 | 2,240 | 0.75 | -62 bearers (-2.7%) | Up 166 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 Simoneaux 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 | #13,259 | #13,093 | 1.3% |
| Count | 2,302 | 2,240 | -2.7% |
| Per 100K | 0.78 | 0.75 | -3.9% |
Between the 2010 and 2020 Census, the number of Simoneaux bearers went from 2,302 to 2,240 (-2.7% change). The surname moved up 166 positions in the national ranking, going from #13,259 to #13,093.
FAQ
Simoneaux surname: questions and answers
How many people in the U.S. have the surname Simoneaux?
Name Census estimates that about 2,569 living Americans carry the surname Simoneaux. Using the current population baseline, that works out to roughly 1 in 133,419 residents.
How common is Simoneaux?
Simoneaux ranks #13,093 in the 2020 Census surname tables and is classified on this site as "Rare." The Census recorded the name at a frequency of 0.75 per 100,000 residents, which is about 1 people out of every 100,000.
How many people with this surname were counted in the Census?
The raw 2020 Census file counted 2,240 people with the surname Simoneaux. That is different from the site's living-bearer estimate (2,569), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 0.75 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 0.75 per 100,000 means that if you picked a random group of 100,000 U.S. residents, you would expect about 1 of them to have the surname Simoneaux.
Has Simoneaux become more or less common over time?
Between 2010 and 2020, the surname Simoneaux went from 2,302 recorded bearers to 2,240. That is a decrease of 62 (-2.7%). In the national ranking it rose from #13,259 to #13,093.
What does the Census say about the background of Simoneaux?
Among Census respondents with the surname Simoneaux, the largest self-reported group is White at 86.0%. The next largest groups are Black (5.8%) and Hispanic (4.6%). 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?
White is the largest self-reported group for the surname Simoneaux in the 2020 Census, accounting for 86.0% (1,927 people in the source table).
What is the full ancestry breakdown?
Simoneaux appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (86.0%), Black (5.8%), Hispanic (4.6%). 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 Simoneaux (2000, 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 Simoneaux mean?
French toponymic surname derived from a place name meaning "son of Simon" or "little Simon." 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 Simoneaux (0.75 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 common is the surname Simoneaux?
Want to know how many people have the surname Simoneaux? HowManyOfMe.org, our sister site, puts the living-bearer count front and centre.