2000
#132,259
National surname rank
Recorded bearers 118
First available Census row
Per 100,000 0.04
Very Rare Last name
Sireno
A Spanish occupational surname derived from the Spanish word "sirena" meaning mermaid or siren.
According to the 2020 US Census Bureau surname tables, roughly 131 Americans carry the last name Sireno. That puts it at #146,495 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,616,445 residents).
This page is the full Name Census profile for the Sireno 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
131
1 in 2,616,445
Census rank
#146,495
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
114
very rare in the US
Popularity narrative
The Census Bureau recorded 114 bearers of the surname Sireno in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 146495th position in the national surname ranking.
Among Census respondents with the surname Sireno, the largest self-reported group is White at 99.1%. The next largest groups are Hispanic (0.9%).
Origin
Meaning and origin of Sireno
The surname SIRENO has its origins in Italy, with records dating back to the 14th century. It is believed to have derived from the Italian word "sirena," meaning "mermaid," which in turn comes from the Latin word "siren."
One of the earliest known references to the SIRENO surname can be found in a document from the city of Genoa dated 1357, where a merchant named Giovanni SIRENO is mentioned. This suggests that the name may have been associated with maritime activities or coastal regions.
In the 15th century, the SIRENO family seemed to have established a presence in the city of Venice, where several members were involved in the trading of textile and spices. A notable figure from this period was Marco SIRENO (1425-1492), a successful merchant who contributed to the construction of a church in the Cannaregio district.
The SIRENO surname also appeared in various records from the Kingdom of Naples during the 16th and 17th centuries. One prominent individual was Tomaso SIRENO (1568-1634), a scholar and poet who wrote several works on philosophy and literature.
In the 18th century, the SIRENO family had branches in different parts of Italy, including Tuscany and Lombardy. A notable member from this era was Giuseppe SIRENO (1734-1801), a renowned architect who designed several churches and palaces in the city of Milan.
Another significant figure bearing the SIRENO surname was Vincenzo SIRENO (1802-1878), a lawyer and politician from the Piedmont region who played a role in the unification of Italy during the Risorgimento period.
As the name spread across Italy, variations in spelling emerged, such as Sireni, Sirenna, and Sirenelli. These variations were often influenced by regional dialects and local traditions.
While the SIRENO surname is not among the most common in Italy today, it has left its mark in various historical records and has been associated with individuals from diverse backgrounds, including merchants, scholars, artists, and political figures.
Demographics
Ancestry and ethnicity for Sireno
Among Census respondents with the surname Sireno, the largest self-reported group is White at 99.1%. The next largest groups are Hispanic (0.9%).
The bar chart below shows how Sireno 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 Sireno surname at the time of the 2020 Census, not any inherent property of the name itself.
- White99.1% · 113
- Hispanic or Latino0.9% · 1
Timeline
Historical Census data for Sireno
Sireno 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
#141,140
National surname rank
Recorded bearers 118
+0 bearers (+0.0%)
Per 100,000 0.04
Rank movement Down 8,881 places
2020
#146,495
National surname rank
Recorded bearers 114
-4 bearers (-3.4%)
Per 100,000 0.04
Rank movement Down 5,355 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #132,259 | 118 | 0.04 | First available Census row | First available Census row |
| 2010 | #141,140 | 118 | 0.04 | +0 bearers (+0.0%) | Down 8,881 places |
| 2020 | #146,495 | 114 | 0.04 | -4 bearers (-3.4%) | Down 5,355 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 Sireno 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 | #141,140 | #146,495 | -3.8% |
| Count | 118 | 114 | -3.4% |
| Per 100K | 0.04 | 0.04 | -4.6% |
Between the 2010 and 2020 Census, the number of Sireno bearers went from 118 to 114 (-3.4% change). The surname moved down 5,355 positions in the national ranking, going from #141,140 to #146,495.
FAQ
Sireno surname: questions and answers
How many people in the U.S. have the surname Sireno?
Name Census estimates that about 131 living Americans carry the surname Sireno. Using the current population baseline, that works out to roughly 1 in 2,616,445 residents.
How common is Sireno?
Sireno ranks #146,495 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 114 people with the surname Sireno. That is different from the site's living-bearer estimate (131), 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 Sireno.
Has Sireno become more or less common over time?
Between 2010 and 2020, the surname Sireno went from 118 recorded bearers to 114. That is a decrease of 4 (-3.4%). In the national ranking it fell from #141,140 to #146,495.
What does the Census say about the background of Sireno?
Among Census respondents with the surname Sireno, the largest self-reported group is White at 99.1%. The next largest groups are Hispanic (0.9%). 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 Sireno in the 2020 Census, accounting for 99.1% (113 people in the source table).
What is the full ancestry breakdown?
Sireno appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (99.1%), Hispanic (0.9%). 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 Sireno (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 Sireno mean?
A Spanish occupational surname derived from the Spanish word "sirena" meaning mermaid or siren. 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 Sireno (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 Americans have the surname Sireno?
For a quick modern estimate, our sister site HowManyOfMe.org answers that in one glance, with the living-bearer count front and centre.