2000
#149,328
National surname rank
Recorded bearers 101
First available Census row
Per 100,000 0.04
Very Rare Last name
Iadicicco
A surname of Italian origin meaning "from Sicily".
According to the 2020 US Census Bureau surname tables, roughly 126 Americans carry the last name Iadicicco. That puts it at #149,446 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,720,273 residents).
This page is the full Name Census profile for the Iadicicco 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
126
1 in 2,720,273
Census rank
#149,446
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
110
very rare in the US
Popularity narrative
The Census Bureau recorded 110 bearers of the surname Iadicicco in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 149446th position in the national surname ranking.
Among Census respondents with the surname Iadicicco, the largest self-reported group is White at 93.6%. The next largest groups are Two or More Races (4.5%) and Hispanic (1.8%).
Origin
Meaning and origin of Iadicicco
The surname Iadicicco originates from Italy, specifically the southern regions of Calabria and Sicily. It is believed to have emerged during the medieval period, likely around the 12th or 13th century. The name is thought to be derived from the Greek word "iadicos," which translates to "related to healing" or "medical." This suggests that the earliest bearers of this surname may have been associated with the medical or healing professions.
One of the earliest recorded instances of the name Iadicicco can be found in the Catalonian Archives, where a document from the year 1283 mentions a certain "Guilielmus Iadicicco" residing in Palermo, Sicily. This suggests that the name had already established itself in the region by the late 13th century.
In the 15th century, a notable figure named Giovanni Iadicicco was a renowned physician in Naples, known for his contributions to the study of anatomy and medicine. His writings and teachings were influential during the Renaissance period.
The town of Iadicicco, located in the province of Reggio Calabria, is believed to have been named after a prominent Iadicicco family that resided there in the 16th century. This further solidifies the connection between the surname and the southern Italian regions.
Another historically significant figure was Antonio Iadicicco, a philosopher and theologian born in Catania, Sicily, in 1620. He authored several works on religious and philosophical topics, including a treatise on the nature of the soul.
In the 18th century, the name Iadicicco appeared in various records and documents from the Kingdom of Naples and the Kingdom of Sicily. One notable individual was Vincenzo Iadicicco, a merchant and landowner born in Palermo in 1745.
As the centuries progressed, the Iadicicco family continued to spread across Italy and beyond, with some members migrating to other parts of Europe and eventually to the Americas. Despite its rarity, the surname has persisted throughout history, maintaining its connection to its southern Italian roots.
Demographics
Ancestry and ethnicity for Iadicicco
Among Census respondents with the surname Iadicicco, the largest self-reported group is White at 93.6%. The next largest groups are Two or More Races (4.5%) and Hispanic (1.8%).
The bar chart below shows how Iadicicco 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 Iadicicco surname at the time of the 2020 Census, not any inherent property of the name itself.
- White93.6% · 103
- Two or more races4.5% · 5
- Hispanic or Latino1.8% · 2
Timeline
Historical Census data for Iadicicco
Iadicicco 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
#150,452
National surname rank
Recorded bearers 109
+8 bearers (+7.9%)
Per 100,000 0.04
Rank movement Down 1,124 places
2020
#149,446
National surname rank
Recorded bearers 110
+1 bearers (+0.9%)
Per 100,000 0.04
Rank movement Up 1,006 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #149,328 | 101 | 0.04 | First available Census row | First available Census row |
| 2010 | #150,452 | 109 | 0.04 | +8 bearers (+7.9%) | Down 1,124 places |
| 2020 | #149,446 | 110 | 0.04 | +1 bearers (+0.9%) | Up 1,006 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 Iadicicco 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 | #150,452 | #149,446 | 0.7% |
| Count | 109 | 110 | 0.9% |
| Per 100K | 0.04 | 0.04 | -8.0% |
Between the 2010 and 2020 Census, the number of Iadicicco bearers went from 109 to 110 (+0.9% change). The surname moved up 1,006 positions in the national ranking, going from #150,452 to #149,446.
FAQ
Iadicicco surname: questions and answers
How many people in the U.S. have the surname Iadicicco?
Name Census estimates that about 126 living Americans carry the surname Iadicicco. Using the current population baseline, that works out to roughly 1 in 2,720,273 residents.
How common is Iadicicco?
Iadicicco ranks #149,446 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 110 people with the surname Iadicicco. That is different from the site's living-bearer estimate (126), 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 Iadicicco.
Has Iadicicco become more or less common over time?
Between 2010 and 2020, the surname Iadicicco went from 109 recorded bearers to 110. That is an increase of 1 (+0.9%). In the national ranking it rose from #150,452 to #149,446.
What does the Census say about the background of Iadicicco?
Among Census respondents with the surname Iadicicco, the largest self-reported group is White at 93.6%. The next largest groups are Two or More Races (4.5%) and Hispanic (1.8%). 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 Iadicicco in the 2020 Census, accounting for 93.6% (103 people in the source table).
What is the full ancestry breakdown?
Iadicicco appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (93.6%), Two or More Races (4.5%), Hispanic (1.8%). 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.
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 Iadicicco (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 Iadicicco mean?
A surname of Italian origin meaning "from Sicily". 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 Iadicicco (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 people share the surname Iadicicco?
For a faster, more casual read, check HowManyOfMe.org — our sister site built around that single question.