2000
#134,929
National surname rank
Recorded bearers 115
First available Census row
Per 100,000 0.04
Very Rare Last name
Robertiello
An Italian surname derived from the personal name Roberto, itself from the Germanic name Robert meaning bright renown.
According to the 2020 US Census Bureau surname tables, roughly 135 Americans carry the last name Robertiello. That puts it at #143,511 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,538,921 residents).
This page is the full Name Census profile for the Robertiello 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
135
1 in 2,538,921
Census rank
#143,511
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
118
very rare in the US
Popularity narrative
The Census Bureau recorded 118 bearers of the surname Robertiello in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 143511th position in the national surname ranking.
Among Census respondents with the surname Robertiello, the largest self-reported group is White at 91.5%. The next largest groups are Hispanic (3.4%) and Two or More Races (2.5%).
Origin
Meaning and origin of Robertiello
The surname Robertiello is of Italian origin, specifically originating from the southern regions of Italy, particularly Campania and Calabria. The name is believed to have derived from the personal name Roberto, which in turn comes from the Germanic name Robert, meaning "bright fame" or "bright renown."
The earliest recorded instances of the name Robertiello can be traced back to the 15th and 16th centuries in various historical records and documents from the regions mentioned above. The suffix "-iello" is a diminutive form commonly used in Italian surnames, indicating a familial connection or a smaller version of the original name.
In the town of Amalfi, located in the province of Salerno, Campania, there is a record of a certain Giovanni Robertiello who lived in the late 15th century. He was a prominent merchant and landowner, and his family's name can be found in several local archives and documents from that time period.
Another notable figure bearing the surname Robertiello was Antonio Robertiello, a Neapolitan poet and writer who lived in the early 17th century. He was known for his lyrical works and contributions to the literary scene of Naples during the Spanish rule over the region.
In the 18th century, Giuseppe Robertiello was a renowned painter from the town of Vietri sul Mare, also in the province of Salerno. His works, primarily depicting religious scenes and portraits, can still be found in various churches and private collections throughout the region.
Moving into the 19th century, Francesco Robertiello was a prominent lawyer and politician from the city of Cosenza, Calabria. He played an active role in the Risorgimento movement and advocated for the unification of Italy under the House of Savoy.
Lastly, one of the most notable figures with the surname Robertiello was Raffaele Robertiello, a celebrated opera singer and tenor who lived from 1864 to 1938. He was born in the town of Gragnano, near Naples, and performed in some of the most prestigious opera houses across Europe, including La Scala in Milan and the Metropolitan Opera in New York.
Demographics
Ancestry and ethnicity for Robertiello
Among Census respondents with the surname Robertiello, the largest self-reported group is White at 91.5%. The next largest groups are Hispanic (3.4%) and Two or More Races (2.5%).
The bar chart below shows how Robertiello 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 Robertiello surname at the time of the 2020 Census, not any inherent property of the name itself.
- White91.5% · 108
- Hispanic or Latino3.4% · 4
- Two or more races2.5% · 3
- American Indian and Alaska Native1.7% · 2
- Black or African American0.8% · 1
Timeline
Historical Census data for Robertiello
Robertiello 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
#143,149
National surname rank
Recorded bearers 116
+1 bearers (+0.9%)
Per 100,000 0.04
Rank movement Down 8,220 places
2020
#143,511
National surname rank
Recorded bearers 118
+2 bearers (+1.7%)
Per 100,000 0.04
Rank movement Down 362 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #134,929 | 115 | 0.04 | First available Census row | First available Census row |
| 2010 | #143,149 | 116 | 0.04 | +1 bearers (+0.9%) | Down 8,220 places |
| 2020 | #143,511 | 118 | 0.04 | +2 bearers (+1.7%) | Down 362 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 Robertiello 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 | #143,149 | #143,511 | -0.3% |
| Count | 116 | 118 | 1.7% |
| Per 100K | 0.04 | 0.04 | -1.3% |
Between the 2010 and 2020 Census, the number of Robertiello bearers went from 116 to 118 (+1.7% change). The surname moved down 362 positions in the national ranking, going from #143,149 to #143,511.
FAQ
Robertiello surname: questions and answers
How many people in the U.S. have the surname Robertiello?
Name Census estimates that about 135 living Americans carry the surname Robertiello. Using the current population baseline, that works out to roughly 1 in 2,538,921 residents.
How common is Robertiello?
Robertiello ranks #143,511 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 118 people with the surname Robertiello. That is different from the site's living-bearer estimate (135), 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 Robertiello.
Has Robertiello become more or less common over time?
Between 2010 and 2020, the surname Robertiello went from 116 recorded bearers to 118. That is an increase of 2 (+1.7%). In the national ranking it fell from #143,149 to #143,511.
What does the Census say about the background of Robertiello?
Among Census respondents with the surname Robertiello, the largest self-reported group is White at 91.5%. The next largest groups are Hispanic (3.4%) and Two or More Races (2.5%). 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 Robertiello in the 2020 Census, accounting for 91.5% (108 people in the source table).
What is the full ancestry breakdown?
Robertiello appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (91.5%), Hispanic (3.4%), Two or More Races (2.5%). 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 Robertiello (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 Robertiello mean?
An Italian surname derived from the personal name Roberto, itself from the Germanic name Robert meaning bright renown. 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 Robertiello (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 common is the surname Robertiello?
Want to know how many people have the surname Robertiello? HowManyOfMe.org, our sister site, puts the living-bearer count front and centre.