2000
#58,553
National surname rank
Recorded bearers 324
First available Census row
Per 100,000 0.12
Very Rare Last name
Boyzo
Possibly derived from the Basque surname Boyzo or the surname Boizó from Catalonia, Spain.
According to the 2020 US Census Bureau surname tables, roughly 561 Americans carry the last name Boyzo. That puts it at #46,865 in the national surname ranking, appearing at a frequency of 0.16 per 100,000 people (about 1 in 610,970 residents).
This page is the full Name Census profile for the Boyzo 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
561
1 in 610,970
Census rank
#46,865
2020 decennial data
Per 100,000
0.2
Frequency rate
Recorded bearers
489
very rare in the US
Popularity narrative
The Census Bureau recorded 489 bearers of the surname Boyzo in its 2020 decennial surname file. At a rate of 0.16 per 100,000 residents, it holds the 46865th position in the national surname ranking.
Among Census respondents with the surname Boyzo, the largest self-reported group is Hispanic at 96.5%. The next largest groups are White (2.7%) and American Indian/Alaska Native (0.4%).
Origin
Meaning and origin of Boyzo
The surname BOYZO originated in Italy during the medieval period, specifically in the region of Tuscany. It is believed to be derived from the Italian word "bozza," which means "hump" or "lump," suggesting that the name may have been initially given as a nickname to someone with a physical attribute or deformity.
One of the earliest recorded instances of the BOYZO surname can be found in the Florentine Codice Diplomatico, a collection of historical documents from the 12th century. In this manuscript, a certain "Guido Boyzo" is mentioned as a witness in a legal transaction dated 1187.
During the 13th century, the BOYZO family gained prominence in the city of Siena, where they were involved in the wool trade and local politics. Notable members include Ranieri Boyzo, a wealthy merchant and city councilor who lived from 1225 to 1298, and Filippo Boyzo, a renowned jurist and legal scholar born in 1270.
In the 14th century, the name spread to other parts of Italy, particularly in the regions of Lombardy and Emilia-Romagna. A branch of the family settled in the town of Modena, where they were known as the "Boyzi di Modena." One notable figure from this lineage was Galeazzo Boyzo (1348-1421), a respected physician and author of several medical treatises.
The BOYZO name also appeared in historical records from Venice, where a family of that name was involved in the maritime trade. Pietro Boyzo (1410-1478) was a prominent Venetian merchant and ship owner who established trade routes with the Byzantine Empire and the Middle East.
Another notable figure was Giovanni Battista Boyzo (1525-1592), a humanist scholar and poet from Milan. He was known for his Latin poetry and his translations of ancient Greek texts.
Throughout the centuries, various spellings of the BOYZO surname emerged, such as Bozzo, Bozzi, and Bozzio, reflecting regional variations and the evolution of the Italian language over time. However, the core meaning and origin of the name remained rooted in its humble beginnings as a descriptive nickname from medieval Italy.
Demographics
Ancestry and ethnicity for Boyzo
Among Census respondents with the surname Boyzo, the largest self-reported group is Hispanic at 96.5%. The next largest groups are White (2.7%) and American Indian/Alaska Native (0.4%).
The bar chart below shows how Boyzo 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 Boyzo surname at the time of the 2020 Census, not any inherent property of the name itself.
- Hispanic or Latino96.5% · 472
- White2.7% · 13
- American Indian and Alaska Native0.4% · 2
- Asian and Pacific Islander0.2% · 1
- Two or more races0.2% · 1
Timeline
Historical Census data for Boyzo
Boyzo 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
#42,640
National surname rank
Recorded bearers 508
+184 bearers (+56.8%)
Per 100,000 0.17
Rank movement Up 15,913 places
2020
#46,865
National surname rank
Recorded bearers 489
-19 bearers (-3.7%)
Per 100,000 0.16
Rank movement Down 4,225 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #58,553 | 324 | 0.12 | First available Census row | First available Census row |
| 2010 | #42,640 | 508 | 0.17 | +184 bearers (+56.8%) | Up 15,913 places |
| 2020 | #46,865 | 489 | 0.16 | -19 bearers (-3.7%) | Down 4,225 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 Boyzo 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 | #42,640 | #46,865 | -9.9% |
| Count | 508 | 489 | -3.7% |
| Per 100K | 0.17 | 0.16 | -3.8% |
Between the 2010 and 2020 Census, the number of Boyzo bearers went from 508 to 489 (-3.7% change). The surname moved down 4,225 positions in the national ranking, going from #42,640 to #46,865.
FAQ
Boyzo surname: questions and answers
How many people in the U.S. have the surname Boyzo?
Name Census estimates that about 561 living Americans carry the surname Boyzo. Using the current population baseline, that works out to roughly 1 in 610,970 residents.
How common is Boyzo?
Boyzo ranks #46,865 in the 2020 Census surname tables and is classified on this site as "Very Rare." The Census recorded the name at a frequency of 0.16 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 489 people with the surname Boyzo. That is different from the site's living-bearer estimate (561), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 0.16 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 0.16 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 Boyzo.
Has Boyzo become more or less common over time?
Between 2010 and 2020, the surname Boyzo went from 508 recorded bearers to 489. That is a decrease of 19 (-3.7%). In the national ranking it fell from #42,640 to #46,865.
What does the Census say about the background of Boyzo?
Among Census respondents with the surname Boyzo, the largest self-reported group is Hispanic at 96.5%. The next largest groups are White (2.7%) and American Indian/Alaska Native (0.4%). 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?
Hispanic is the largest self-reported group for the surname Boyzo in the 2020 Census, accounting for 96.5% (472 people in the source table).
What is the full ancestry breakdown?
Boyzo appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are Hispanic (96.5%), White (2.7%), American Indian/Alaska Native (0.4%). 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 Boyzo (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 Boyzo mean?
Possibly derived from the Basque surname Boyzo or the surname Boizó from Catalonia, Spain. 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 Boyzo (0.16 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 are called Boyzo?
Our sister site HowManyOfMe.org answers how many people have the surname Boyzo at a glance, with the living-bearer count up front.