2010
#152,628
National surname rank
Recorded bearers 107
First available Census row
Per 100,000 0.04
Very Rare Last name
Accomazzo
Derived from the Italian verb "accomazzi," meaning "to strike blows," likely referring to a combative or aggressive person.
According to the 2020 US Census Bureau surname tables, roughly 118 Americans carry the last name Accomazzo. 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 Accomazzo 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 Accomazzo 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 Accomazzo, the largest self-reported group is White at 95.1%. The next largest groups are Asian/Pacific Islander (1.9%) and Hispanic (1.0%).
Origin
Meaning and origin of Accomazzo
The surname Accomazzo originated in Italy, likely in the southern regions during the medieval period. Its roots can be traced back to the Latin word "accumulare," which means "to accumulate" or "to gather." This suggests that the name may have initially referred to someone whose occupation involved gathering or accumulating goods, such as a merchant or a collector.
The earliest recorded instances of the name Accomazzo can be found in historical documents from the 13th and 14th centuries in various parts of southern Italy, particularly in the regions of Campania, Calabria, and Sicily. Some variations in spelling, such as Accumazzo or Accumaci, were also common during this time.
One of the earliest documented individuals with the surname Accomazzo was Giovanni Accomazzo, a merchant from the city of Naples who lived in the late 13th century. Historical records indicate that he was involved in the trade of silk and spices with the eastern Mediterranean regions.
Another notable figure was Matteo Accomazzo, a nobleman and landowner from the province of Catanzaro in Calabria, who lived during the 15th century. He was known for his extensive agricultural holdings and his influential role in local politics.
In the 16th century, the name Accomazzo appeared in the records of the Spanish Inquisition, indicating that some members of the family may have been persecuted for their religious beliefs during that period.
During the Renaissance, several artists and scholars bore the surname Accomazzo. Francesco Accomazzo was a prominent painter from Palermo, Sicily, who lived in the late 16th century and was known for his religious works and portraits.
In the 18th century, a notable figure was Antonio Accomazzo, a philosopher and writer from Naples who authored several treatises on ethics and moral philosophy.
While the surname Accomazzo is not as common today as it once was, it has left a lasting mark on the historical records of Italy, particularly in the southern regions where it originated. The name serves as a testament to the rich cultural heritage and diverse occupations of the Italian people throughout the centuries.
Demographics
Ancestry and ethnicity for Accomazzo
Among Census respondents with the surname Accomazzo, the largest self-reported group is White at 95.1%. The next largest groups are Asian/Pacific Islander (1.9%) and Hispanic (1.0%).
The bar chart below shows how Accomazzo 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 Accomazzo surname at the time of the 2020 Census, not any inherent property of the name itself.
- White95.1% · 98
- Asian and Pacific Islander1.9% · 2
- Hispanic or Latino1.0% · 1
- American Indian and Alaska Native1.0% · 1
- Two or more races1.0% · 1
Timeline
Historical Census data for Accomazzo
Accomazzo 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.
2020
#154,182
National surname rank
Recorded bearers 103
-4 bearers (-3.7%)
Per 100,000 0.03
Rank movement Down 1,554 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2010 | #152,628 | 107 | 0.04 | First available Census row | First available Census row |
| 2020 | #154,182 | 103 | 0.03 | -4 bearers (-3.7%) | Down 1,554 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 Accomazzo 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 | #152,628 | #154,182 | -1.0% |
| Count | 107 | 103 | -3.7% |
| Per 100K | 0.04 | 0.03 | -13.9% |
Between the 2010 and 2020 Census, the number of Accomazzo bearers went from 107 to 103 (-3.7% change). The surname moved down 1,554 positions in the national ranking, going from #152,628 to #154,182.
FAQ
Accomazzo surname: questions and answers
How many people in the U.S. have the surname Accomazzo?
Name Census estimates that about 118 living Americans carry the surname Accomazzo. Using the current population baseline, that works out to roughly 1 in 2,904,698 residents.
How common is Accomazzo?
Accomazzo 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 Accomazzo. 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 Accomazzo.
Has Accomazzo become more or less common over time?
Between 2010 and 2020, the surname Accomazzo went from 107 recorded bearers to 103. That is a decrease of 4 (-3.7%). In the national ranking it fell from #152,628 to #154,182.
What does the Census say about the background of Accomazzo?
Among Census respondents with the surname Accomazzo, the largest self-reported group is White at 95.1%. The next largest groups are Asian/Pacific Islander (1.9%) and Hispanic (1.0%). 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 Accomazzo in the 2020 Census, accounting for 95.1% (98 people in the source table).
What is the full ancestry breakdown?
Accomazzo appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (95.1%), Asian/Pacific Islander (1.9%), Hispanic (1.0%). 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 Accomazzo (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 Accomazzo mean?
Derived from the Italian verb "accomazzi," meaning "to strike blows," likely referring to a combative or aggressive person. 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 Accomazzo (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 common is the surname Accomazzo?
Our sister site HowManyOfMe.org answers how many people have the surname Accomazzo at a glance, with the living-bearer count up front.