2000
#114,166
National surname rank
Recorded bearers 142
First available Census row
Per 100,000 0.05
Very Rare Last name
Nicolazzi
An Italian surname derived from the given name Nicola, meaning "victory of the people".
According to the 2020 US Census Bureau surname tables, roughly 130 Americans carry the last name Nicolazzi. That puts it at #147,221 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,636,572 residents).
This page is the full Name Census profile for the Nicolazzi 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
130
1 in 2,636,572
Census rank
#147,221
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
113
very rare in the US
Popularity narrative
The Census Bureau recorded 113 bearers of the surname Nicolazzi in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 147221st position in the national surname ranking.
Among Census respondents with the surname Nicolazzi, the largest self-reported group is White at 95.6%. The next largest groups are Hispanic (4.4%).
Origin
Meaning and origin of Nicolazzi
The surname Nicolazzi is of Italian origin, originating from the northern regions of Italy during the medieval period. It is believed to be a patronymic surname, derived from the personal name Nicola, which is the Italian form of the Greek name Nicholas, meaning "victor of the people."
One of the earliest recorded instances of the name Nicolazzi can be found in the historic records of the city of Genoa, dating back to the 13th century. The name was particularly prevalent in the regions of Liguria and Piedmont, where it is thought to have originated.
The surname Nicolazzi has also been associated with several notable individuals throughout history. One such figure was Giovanni Battista Nicolazzi, a prominent Italian painter and architect who lived during the 16th century. His works can be found in various churches and palaces across Italy.
Another notable bearer of the surname was Francesco Nicolazzi, a renowned Italian sculptor from the 17th century. He was renowned for his intricate marble sculptures, many of which adorned the churches and public spaces of his native city of Genoa.
In the 18th century, the name Nicolazzi was associated with Antonio Nicolazzi, a celebrated Italian composer and violinist. His compositions were widely performed throughout Europe during his lifetime and continue to be appreciated by classical music enthusiasts today.
During the 19th century, the name gained prominence with the birth of Girolamo Nicolazzi, an Italian politician and statesman. He played a significant role in the unification of Italy and served as a member of the Italian Parliament for several terms.
The surname Nicolazzi has also been connected to various place names and regional variations in spelling throughout its history. In some regions of Italy, it was spelled as Nicolazi or Nicolazzi, while in others, it was written as Niccolazzi or Niccolazi.
While the surname Nicolazzi is not among the most common Italian surnames, it has a rich history and has been borne by several notable figures throughout the centuries. Its origins can be traced back to the medieval period, and it remains a part of Italy's cultural heritage to this day.
Demographics
Ancestry and ethnicity for Nicolazzi
Among Census respondents with the surname Nicolazzi, the largest self-reported group is White at 95.6%. The next largest groups are Hispanic (4.4%).
The bar chart below shows how Nicolazzi 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 Nicolazzi surname at the time of the 2020 Census, not any inherent property of the name itself.
- White95.6% · 108
- Hispanic or Latino4.4% · 5
Timeline
Historical Census data for Nicolazzi
Nicolazzi 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
#127,494
National surname rank
Recorded bearers 134
-8 bearers (-5.6%)
Per 100,000 0.05
Rank movement Down 13,328 places
2020
#147,221
National surname rank
Recorded bearers 113
-21 bearers (-15.7%)
Per 100,000 0.04
Rank movement Down 19,727 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #114,166 | 142 | 0.05 | First available Census row | First available Census row |
| 2010 | #127,494 | 134 | 0.05 | -8 bearers (-5.6%) | Down 13,328 places |
| 2020 | #147,221 | 113 | 0.04 | -21 bearers (-15.7%) | Down 19,727 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 Nicolazzi 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 | #127,494 | #147,221 | -15.5% |
| Count | 134 | 113 | -15.7% |
| Per 100K | 0.05 | 0.04 | -24.4% |
Between the 2010 and 2020 Census, the number of Nicolazzi bearers went from 134 to 113 (-15.7% change). The surname moved down 19,727 positions in the national ranking, going from #127,494 to #147,221.
FAQ
Nicolazzi surname: questions and answers
How many people in the U.S. have the surname Nicolazzi?
Name Census estimates that about 130 living Americans carry the surname Nicolazzi. Using the current population baseline, that works out to roughly 1 in 2,636,572 residents.
How common is Nicolazzi?
Nicolazzi ranks #147,221 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 113 people with the surname Nicolazzi. That is different from the site's living-bearer estimate (130), 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 Nicolazzi.
Has Nicolazzi become more or less common over time?
Between 2010 and 2020, the surname Nicolazzi went from 134 recorded bearers to 113. That is a decrease of 21 (-15.7%). In the national ranking it fell from #127,494 to #147,221.
What does the Census say about the background of Nicolazzi?
Among Census respondents with the surname Nicolazzi, the largest self-reported group is White at 95.6%. The next largest groups are Hispanic (4.4%). 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?
White is the largest self-reported group for the surname Nicolazzi in the 2020 Census, accounting for 95.6% (108 people in the source table).
What is the full ancestry breakdown?
Nicolazzi appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (95.6%), Hispanic (4.4%). 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 Nicolazzi (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 Nicolazzi mean?
An Italian surname derived from the given name Nicola, meaning "victory of the people". 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 Nicolazzi (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 are called Nicolazzi?
Find out how common the surname Nicolazzi is on our sister site HowManyOfMe.org — a quick modern estimate with the living-bearer count front and centre.