2010
#158,432
National surname rank
First available Census row
A surname believed to be of Hindi origin referring to someone of higher social status or rank.
According to the 2020 US Census Bureau surname tables, roughly 190 Americans carry the last name Tati. That puts it at #112,515 in the national surname ranking, appearing at a frequency of 0.06 per 100,000 people (about 1 in 1,803,970 residents).
This page is the full Name Census profile for the Tati 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
190
1 in 1,803,970
Census rank
#112,515
2020 decennial data
Per 100,000
0.1
Frequency rate
Recorded bearers
166
very rare in the US
Popularity narrative
The Census Bureau recorded 166 bearers of the surname Tati in its 2020 decennial surname file. At a rate of 0.06 per 100,000 residents, it holds the 112515th position in the national surname ranking.
Among Census respondents with the surname Tati, the largest self-reported group is Asian/Pacific Islander at 42.2%. The next largest groups are Black (27.7%) and White (17.5%).
Origin
The surname TATI originated in Italy during the medieval period, primarily in the regions of Tuscany and Emilia-Romagna. It is believed to be derived from the Italian word "tata," which means "nanny" or "governess." This suggests that the name may have initially been given as a nickname to someone who worked as a nanny or caregiver for children.
One of the earliest known references to the name TATI can be found in the historical records of the city of Florence, dating back to the 13th century. In these records, a certain Guglielmo Tati is mentioned as a prominent merchant and landowner in the area.
In the 14th century, the TATI name appeared in several legal documents and property records in the town of Bologna, indicating that the family had established itself as a respected lineage in the region.
During the Renaissance period, the TATI name gained further prominence with the birth of the renowned artist and architect, Jacopo Tati, who lived from 1452 to 1517. Jacopo Tati is credited with designing several notable churches and palaces in Bologna, including the Church of San Petronio and the Palazzo Tati, which still stands today.
Another notable figure with the TATI surname was Girolamo Tati, an Italian philosopher and theologian who lived from 1492 to 1567. Girolamo Tati was a prominent figure in the Catholic Church and served as a professor at the University of Bologna.
In the 17th century, the TATI name can be found in the historical records of the city of Siena, where a family of artists and artisans bearing the surname was active. One of the most notable members of this family was the sculptor and woodcarver, Francesco Tati, who was born in 1620 and is known for his intricate and highly detailed works.
During the 18th century, the TATI name appeared in the annals of the Venetian Republic, where a prominent family of merchants and bankers bearing the surname played a significant role in the city's economic and political affairs.
Throughout the centuries, the TATI surname has also been associated with various place names and older spellings, such as Tatti, Tatii, and Tatini, which were commonly used in different regions of Italy.
Demographics
Among Census respondents with the surname Tati, the largest self-reported group is Asian/Pacific Islander at 42.2%. The next largest groups are Black (27.7%) and White (17.5%).
The bar chart below shows how Tati 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 Tati surname at the time of the 2020 Census, not any inherent property of the name itself.
Timeline
Tati 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
+64 bearers (+62.7%)
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2010 | #158,432 | 102 | 0.03 | First available Census row | First available Census row |
| 2020 | #112,515 | 166 | 0.06 | +64 bearers (+62.7%) | Up 45,917 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 Tati 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 | #158,432 | #112,515 | 29.0% |
| Count | 102 | 166 | 62.7% |
| Per 100K | 0.03 | 0.06 | 85.1% |
Between the 2010 and 2020 Census, the number of Tati bearers went from 102 to 166 (+62.7% change). The surname moved up 45,917 positions in the national ranking, going from #158,432 to #112,515.
Notable bearers
FAQ
Name Census estimates that about 190 living Americans carry the surname Tati. Using the current population baseline, that works out to roughly 1 in 1,803,970 residents.
Tati ranks #112,515 in the 2020 Census surname tables and is classified on this site as "Very Rare." The Census recorded the name at a frequency of 0.06 per 100,000 residents, which is about 0 people out of every 100,000.
The raw 2020 Census file counted 166 people with the surname Tati. That is different from the site's living-bearer estimate (190), 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 0.06 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 Tati.
Between 2010 and 2020, the surname Tati went from 102 recorded bearers to 166. That is an increase of 64 (+62.7%). In the national ranking it rose from #158,432 to #112,515.
Among Census respondents with the surname Tati, the largest self-reported group is Asian/Pacific Islander at 42.2%. The next largest groups are Black (27.7%) and White (17.5%). These figures come from the 2020 Census Bureau surname tables, based on how respondents described their own race and ethnicity.
Asian/Pacific Islander is the largest self-reported group for the surname Tati in the 2020 Census, accounting for 42.2% (70 people in the source table).
Tati appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are Asian/Pacific Islander (42.2%), Black (27.7%), White (17.5%). 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 Tati (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.
A surname believed to be of Hindi origin referring to someone of higher social status or rank. 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 Tati (0.06 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 faster, more casual read, check HowManyOfMe.org — our sister site built around that single question.