2010
#157,234
National surname rank
First available Census row
Derived from the Italian word "agnello," meaning "lamb," likely referring to a shepherd or someone who worked with lambs.
According to the 2020 US Census Bureau surname tables, roughly 133 Americans carry the last name Agnetti. That puts it at #145,028 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,577,100 residents).
This page is the full Name Census profile for the Agnetti 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
133
1 in 2,577,100
Census rank
#145,028
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
116
very rare in the US
Popularity narrative
The Census Bureau recorded 116 bearers of the surname Agnetti in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 145028th position in the national surname ranking.
Among Census respondents with the surname Agnetti, the largest self-reported group is White at 82.8%. The next largest groups are Hispanic (12.1%) and Two or More Races (3.4%).
Origin
The surname Agnetti originated in Italy, with the earliest records dating back to the 13th century. It is believed to have derived from the Italian word "agnello," meaning "lamb," suggesting that the name may have been initially given as a nickname or occupation descriptor to someone who worked with lambs or sheep.
One of the earliest recorded instances of the name Agnetti can be found in the historical records of the city of Florence, where a certain Agnolo di Agnetti is mentioned as a prominent citizen in the year 1275. The name also appears in several medieval manuscripts and documents from various regions of Italy, such as the Libro Rosso di Firenze (Red Book of Florence) and the Codice Diplomatico Longobardo (Longobard Diplomatic Code).
During the Renaissance period, the Agnetti family gained significant prominence in the city of Siena, where they were involved in the wool trade and held influential positions in the local government. One notable figure from this era was Antonio Agnetti (1455-1520), a renowned jurist and diplomat who served as the ambassador of the Republic of Siena to the Holy Roman Empire.
In the 17th century, the Agnetti surname spread to other parts of Italy, including Naples and Rome. In Naples, the Agnetti family was known for their involvement in the silk industry, while in Rome, they were prominent members of the Catholic clergy. Vincenzo Agnetti (1624-1692), a Roman prelate and theologian, was a respected figure in the Vatican and served as the personal secretary to Pope Innocent XI.
As the Agnetti surname continued to spread throughout Italy, it also found its way to other parts of Europe. In the 18th century, a branch of the family settled in Spain, where they adopted the Spanish spelling "Agüetti." One notable figure from this period was Francisco Agüetti (1738-1814), a Spanish military officer who played a crucial role in the Napoleonic Wars.
In the 19th century, members of the Agnetti family began to migrate to the Americas, with several individuals settling in Argentina and Brazil. One notable figure from this era was Giovanna Agnetti (1821-1892), an Italian-born artist and sculptor who gained recognition for her works in Buenos Aires.
Throughout its long history, the Agnetti surname has been associated with various professions and fields, including law, diplomacy, religion, military service, and the arts. While the name may have originated as a humble nickname or occupation descriptor, it has since gained a rich heritage and cultural significance, reflecting the diverse experiences and contributions of its bearers across centuries and continents.
Demographics
Among Census respondents with the surname Agnetti, the largest self-reported group is White at 82.8%. The next largest groups are Hispanic (12.1%) and Two or More Races (3.4%).
The bar chart below shows how Agnetti 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 Agnetti surname at the time of the 2020 Census, not any inherent property of the name itself.
Timeline
Agnetti 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
+13 bearers (+12.6%)
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2010 | #157,234 | 103 | 0.03 | First available Census row | First available Census row |
| 2020 | #145,028 | 116 | 0.04 | +13 bearers (+12.6%) | Up 12,206 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 Agnetti 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 | #157,234 | #145,028 | 7.8% |
| Count | 103 | 116 | 12.6% |
| Per 100K | 0.03 | 0.04 | 29.4% |
Between the 2010 and 2020 Census, the number of Agnetti bearers went from 103 to 116 (+12.6% change). The surname moved up 12,206 positions in the national ranking, going from #157,234 to #145,028.
FAQ
Name Census estimates that about 133 living Americans carry the surname Agnetti. Using the current population baseline, that works out to roughly 1 in 2,577,100 residents.
Agnetti ranks #145,028 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 116 people with the surname Agnetti. That is different from the site's living-bearer estimate (133), 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 Agnetti.
Between 2010 and 2020, the surname Agnetti went from 103 recorded bearers to 116. That is an increase of 13 (+12.6%). In the national ranking it rose from #157,234 to #145,028.
Among Census respondents with the surname Agnetti, the largest self-reported group is White at 82.8%. The next largest groups are Hispanic (12.1%) and Two or More Races (3.4%). These figures come from the 2020 Census Bureau surname tables, based on how respondents described their own race and ethnicity.
White is the largest self-reported group for the surname Agnetti in the 2020 Census, accounting for 82.8% (96 people in the source table).
Agnetti appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (82.8%), Hispanic (12.1%), Two or More Races (3.4%). 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.
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 Agnetti (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.
Derived from the Italian word "agnello," meaning "lamb," likely referring to a shepherd or someone who worked with lambs. 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 Agnetti (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.
For a quick modern estimate, our sister site HowManyOfMe.org answers that in one glance, with the living-bearer count front and centre.