2010
#158,432
National surname rank
First available Census row
An Italian surname derived from the Italian town Billioni.
According to the 2020 US Census Bureau surname tables, roughly 135 Americans carry the last name Billini. 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 Billini 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 Billini 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 Billini, the largest self-reported group is Hispanic at 82.2%. The next largest groups are White (15.3%) and Black (0.8%).
Origin
The surname BILLINI is of Italian origin, emerging in the late 15th century from the region of Tuscany. It is believed to have derived from the Italian word "billino," meaning a small ornamental stick or rod, which was likely an occupational name for someone who crafted such items.
One of the earliest recorded instances of the name BILLINI can be found in a 1492 census record from the town of Siena, which lists a family headed by a man named Guido BILLINI. This suggests the name had already become established in Tuscany by the late medieval period.
In the 16th century, the name appears in various legal documents and church records across Tuscany, indicating its continued presence in the region. A notable bearer of the name was Lorenzo BILLINI, a renowned painter and fresco artist who lived from 1524 to 1592 and is known for his works in several churches in Florence.
As the BILLINI family spread throughout Italy over the centuries, the name underwent some variations in spelling, such as BILLINO and BILLINA. These alternative spellings can be found in records from the 17th and 18th centuries, particularly in the regions of Lombardy and Emilia-Romagna.
One of the most prominent figures with the BILLINI surname was Giuseppe BILLINI, an Italian writer and philosopher who lived from 1771 to 1844. He was born in Modena and is best known for his works on ethics and political theory, including his influential treatise "Della Felicità Nazionale" (On National Happiness).
In the 19th century, the BILLINI name also gained recognition in the field of science. Antonio BILLINI (1829-1901) was a renowned Italian botanist and professor at the University of Pisa, known for his contributions to the study of plant taxonomy and classification.
Another notable bearer of the BILLINI surname was Ettore BILLINI (1865-1939), an Italian architect who designed several notable buildings in Rome and Naples, including the Palazzo delle Esposizioni and the Galleria Umberto I.
While the BILLINI name has its roots in Italy, it has since spread to other parts of the world through immigration. However, its origins and historical significance remain closely tied to its Italian heritage, particularly in the regions of Tuscany and Emilia-Romagna.
Demographics
Among Census respondents with the surname Billini, the largest self-reported group is Hispanic at 82.2%. The next largest groups are White (15.3%) and Black (0.8%).
The bar chart below shows how Billini 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 Billini surname at the time of the 2020 Census, not any inherent property of the name itself.
Timeline
Billini 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.
2010
National surname rank
First available Census row
2020
National surname rank
+16 bearers (+15.7%)
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2010 | #158,432 | 102 | 0.03 | First available Census row | First available Census row |
| 2020 | #143,511 | 118 | 0.04 | +16 bearers (+15.7%) | Up 14,921 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
How has the Billini surname changed between Census years? The chart shows bearer count side by side, and the table compares rank, count, and frequency.
Census year comparison
| Metric | 2010 | 2020 | Change |
|---|---|---|---|
| Rank | #158,432 | #143,511 | 9.4% |
| Count | 102 | 118 | 15.7% |
| Per 100K | 0.03 | 0.04 | 31.6% |
Between the 2010 and 2020 Census, the number of Billini bearers went from 102 to 118 (+15.7% change). The surname moved up 14,921 positions in the national ranking, going from #158,432 to #143,511.
FAQ
Name Census estimates that about 135 living Americans carry the surname Billini. Using the current population baseline, that works out to roughly 1 in 2,538,921 residents.
Billini 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.
The raw 2020 Census file counted 118 people with the surname Billini. 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.
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 Billini.
Between 2010 and 2020, the surname Billini went from 102 recorded bearers to 118. That is an increase of 16 (+15.7%). In the national ranking it rose from #158,432 to #143,511.
Among Census respondents with the surname Billini, the largest self-reported group is Hispanic at 82.2%. The next largest groups are White (15.3%) and Black (0.8%). These figures come from the 2020 Census Bureau surname tables, based on how respondents described their own race and ethnicity.
Hispanic is the largest self-reported group for the surname Billini in the 2020 Census, accounting for 82.2% (97 people in the source table).
Billini appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are Hispanic (82.2%), White (15.3%), Black (0.8%). 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.
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 Billini (2010, 2020).
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.
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.
An Italian surname derived from the Italian town Billioni. The fuller origin note on this page goes into more detail.
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.
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 Billini (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.
If you just want to know how many people are called Billini, HowManyOfMe.org gives you the headline number in one glance.