2010
#157,234
National surname rank
Recorded bearers 103
First available Census row
Per 100,000 0.03
Very Rare Last name
Guyaux
French, referring to someone from Guyaux or Guye, place names in northern France.
According to the 2020 US Census Bureau surname tables, roughly 116 Americans carry the last name Guyaux. That puts it at #155,270 in the national surname ranking, appearing at a frequency of 0.03 per 100,000 people (about 1 in 2,954,779 residents).
This page is the full Name Census profile for the Guyaux 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
116
1 in 2,954,779
Census rank
#155,270
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
101
very rare in the US
Popularity narrative
The Census Bureau recorded 101 bearers of the surname Guyaux in its 2020 decennial surname file. At a rate of 0.03 per 100,000 residents, it holds the 155270th position in the national surname ranking.
Among Census respondents with the surname Guyaux, the largest self-reported group is White at 100.0%.
Origin
Meaning and origin of Guyaux
The surname GUYAUX originated from France during the medieval period. It is believed to have originated from the old French word "guieu," which referred to a soldier or warrior. The name was likely given as a descriptive surname to someone who was a skilled or brave soldier.
In the 12th century, there are records of the name appearing in the region of Normandy, France. One of the earliest recorded examples is from a manuscript dated 1187, which mentions a "Robertus Guyaux" from the town of Caen.
During the 13th century, the name began to spread to other regions of France, particularly in the northern and central areas. The spelling variations during this time included Guiaux, Guyeaux, and Guiyaux.
One notable historical figure with the surname GUYAUX was Jean Guyaux, a French poet and playwright born in 1512 in Paris. He is best known for his satirical works criticizing the clergy and nobility of his time.
In the 16th century, the name also appeared in records from the town of Limoges, where a family of GUYAUX were prominent merchants and landowners. One member, Pierre Guyaux (1572-1646), was a successful trader who established trade routes with Spain and Italy.
During the French Revolution in the late 18th century, a soldier named François Guyaux (1768-1842) fought in the revolutionary armies and later served under Napoleon. He rose to the rank of Colonel and was awarded the Légion d'Honneur for his bravery.
Another notable figure was Marie Guyaux (1845-1919), a pioneering French educator who founded several schools for girls in Paris and advocated for women's education and rights.
In the 19th century, the name GUYAUX also appeared in records from the Alsace region, which was part of Germany at the time. One example is Johann Guyaux (1822-1897), a prominent winemaker from the town of Colmar.
While the name GUYAUX is not as common today, it has a rich history that can be traced back to medieval France and is associated with various professions and achievements throughout the centuries.
Demographics
Ancestry and ethnicity for Guyaux
Among Census respondents with the surname Guyaux, the largest self-reported group is White at 100.0%.
The bar chart below shows how Guyaux 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 Guyaux surname at the time of the 2020 Census, not any inherent property of the name itself.
- White100.0% · 101
Timeline
Historical Census data for Guyaux
Guyaux 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
#155,270
National surname rank
Recorded bearers 101
-2 bearers (-1.9%)
Per 100,000 0.03
Rank movement Up 1,964 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2010 | #157,234 | 103 | 0.03 | First available Census row | First available Census row |
| 2020 | #155,270 | 101 | 0.03 | -2 bearers (-1.9%) | Up 1,964 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 Guyaux 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 | #157,234 | #155,270 | 1.2% |
| Count | 103 | 101 | -1.9% |
| Per 100K | 0.03 | 0.03 | 12.6% |
Between the 2010 and 2020 Census, the number of Guyaux bearers went from 103 to 101 (-1.9% change). The surname moved up 1,964 positions in the national ranking, going from #157,234 to #155,270.
FAQ
Guyaux surname: questions and answers
How many people in the U.S. have the surname Guyaux?
Name Census estimates that about 116 living Americans carry the surname Guyaux. Using the current population baseline, that works out to roughly 1 in 2,954,779 residents.
How common is Guyaux?
Guyaux ranks #155,270 in the 2020 Census surname tables and is classified on this site as "Very Rare." The Census recorded the name at a frequency of 0.03 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 101 people with the surname Guyaux. That is different from the site's living-bearer estimate (116), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 0.03 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 0.03 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 Guyaux.
Has Guyaux become more or less common over time?
Between 2010 and 2020, the surname Guyaux went from 103 recorded bearers to 101. That is a decrease of 2 (-1.9%). In the national ranking it rose from #157,234 to #155,270.
What does the Census say about the background of Guyaux?
Among Census respondents with the surname Guyaux, the largest self-reported group is White at 100.0%. 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 Guyaux in the 2020 Census, accounting for 100.0% (101 people in the source table).
What is the full ancestry breakdown?
Guyaux appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (100.0%). 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 Guyaux (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 Guyaux mean?
French, referring to someone from Guyaux or Guye, place names in northern France. 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 Guyaux (0.03 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 have the last name Guyaux?
For a quick modern take, check how many people have the last name Guyaux on our sister site HowManyOfMe.org.