2000
#140,756
National surname rank
Recorded bearers 109
First available Census row
Per 100,000 0.04
Very Rare Last name
Roix
Of French origin, referring to 'king' or 'royal'.
According to the 2020 US Census Bureau surname tables, roughly 118 Americans carry the last name Roix. That puts it at #154,182 in the national surname ranking, appearing at a frequency of 0.03 per 100,000 people (about 1 in 2,904,698 residents).
This page is the full Name Census profile for the Roix 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
118
1 in 2,904,698
Census rank
#154,182
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
103
very rare in the US
Popularity narrative
The Census Bureau recorded 103 bearers of the surname Roix in its 2020 decennial surname file. At a rate of 0.03 per 100,000 residents, it holds the 154182nd position in the national surname ranking.
Among Census respondents with the surname Roix, the largest self-reported group is White at 91.3%. The next largest groups are Black (2.9%) and Asian/Pacific Islander (1.9%).
Origin
Meaning and origin of Roix
The surname ROIX has its origins in France, with the earliest known records dating back to the late 12th century. It is believed to have originated from the Old French word "roix," which means "king" or "ruler." This suggests that the name may have been given to someone who held a position of authority or was associated with royalty.
During the Middle Ages, many surnames derived from occupations, locations, or physical characteristics were adopted in France. The name ROIX could have been used to identify someone who held a position of power or was a member of a noble family. It is also possible that the name was initially a nickname given to someone who displayed a regal or commanding presence.
One of the earliest recorded instances of the ROIX surname can be found in the "Livre des Hôtes" (Book of Hosts), a medieval French document from the late 12th century. This record mentions a person named Renaud ROIX, who was likely a landowner or a member of the nobility.
In the 13th century, there are references to a village called "Roix" in the Burgundy region of France. It is possible that the surname ROIX may have originated from this place name or that those bearing the name were associated with this location.
Throughout history, several notable individuals have borne the ROIX surname. One of the earliest was Jean ROIX, a French nobleman born around 1285 who served as a knight in the service of King Philip IV of France during the early 14th century.
Another prominent figure was Jacques ROIX, a 16th-century French diplomat and scholar who served as the ambassador to the Holy Roman Empire during the reign of King Francis I. He was born in 1492 and played a significant role in negotiating treaties and alliances between France and other European powers.
In the 17th century, Marie ROIX (1635-1706) was a French writer and poet known for her works on religion and philosophy. She was highly regarded in literary circles and was a member of the prestigious Académie des Ricovrati in Padua, Italy.
During the 18th century, Pierre ROIX (1714-1788) was a renowned French architect who designed several notable buildings in Paris, including the Palais de la Légion d'Honneur and the Church of Saint-Roch.
In the 19th century, Émile ROIX (1829-1903) was a French painter and illustrator who specialized in historical and military scenes. His works were exhibited at the prestigious Paris Salon and are now housed in various museums across France.
While the surname ROIX has its roots in France, it has since spread to other parts of the world through migration and historical events. However, its origins can be traced back to the Old French language and the association with royalty or positions of authority.
Demographics
Ancestry and ethnicity for Roix
Among Census respondents with the surname Roix, the largest self-reported group is White at 91.3%. The next largest groups are Black (2.9%) and Asian/Pacific Islander (1.9%).
The bar chart below shows how Roix 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 Roix surname at the time of the 2020 Census, not any inherent property of the name itself.
- White91.3% · 94
- Black or African American2.9% · 3
- Asian and Pacific Islander1.9% · 2
- American Indian and Alaska Native1.9% · 2
- Hispanic or Latino1.0% · 1
- Two or more races1.0% · 1
Timeline
Historical Census data for Roix
Roix 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
#159,712
National surname rank
Recorded bearers 101
-8 bearers (-7.3%)
Per 100,000 0.03
Rank movement Down 18,956 places
2020
#154,182
National surname rank
Recorded bearers 103
+2 bearers (+2.0%)
Per 100,000 0.03
Rank movement Up 5,530 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #140,756 | 109 | 0.04 | First available Census row | First available Census row |
| 2010 | #159,712 | 101 | 0.03 | -8 bearers (-7.3%) | Down 18,956 places |
| 2020 | #154,182 | 103 | 0.03 | +2 bearers (+2.0%) | Up 5,530 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 Roix 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 | #159,712 | #154,182 | 3.5% |
| Count | 101 | 103 | 2.0% |
| Per 100K | 0.03 | 0.03 | 14.9% |
Between the 2010 and 2020 Census, the number of Roix bearers went from 101 to 103 (+2.0% change). The surname moved up 5,530 positions in the national ranking, going from #159,712 to #154,182.
FAQ
Roix surname: questions and answers
How many people in the U.S. have the surname Roix?
Name Census estimates that about 118 living Americans carry the surname Roix. Using the current population baseline, that works out to roughly 1 in 2,904,698 residents.
How common is Roix?
Roix ranks #154,182 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 103 people with the surname Roix. That is different from the site's living-bearer estimate (118), 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 Roix.
Has Roix become more or less common over time?
Between 2010 and 2020, the surname Roix went from 101 recorded bearers to 103. That is an increase of 2 (+2.0%). In the national ranking it rose from #159,712 to #154,182.
What does the Census say about the background of Roix?
Among Census respondents with the surname Roix, the largest self-reported group is White at 91.3%. The next largest groups are Black (2.9%) and Asian/Pacific Islander (1.9%). 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?
White is the largest self-reported group for the surname Roix in the 2020 Census, accounting for 91.3% (94 people in the source table).
What is the full ancestry breakdown?
Roix appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (91.3%), Black (2.9%), Asian/Pacific Islander (1.9%). 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 Roix (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 Roix mean?
Of French origin, referring to 'king' or 'royal'. 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 Roix (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 share the surname Roix?
For a faster, more casual read, check HowManyOfMe.org — our sister site built around that single question.