2010
#159,712
National surname rank
Recorded bearers 101
First available Census row
Per 100,000 0.03
Very Rare Last name
Blavat
An archaic spelling variant of the French surname Blavat, possibly deriving from a place of origin or occupation.
According to the 2020 US Census Bureau surname tables, roughly 116 Americans carry the last name Blavat. That puts it at #155,270 in the national surname ranking, appearing at a frequency of 0.03 per 100,000 people (about 1 in 2,954,779 residents).
This page is the full Name Census profile for the Blavat 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
116
1 in 2,954,779
Census rank
#155,270
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
101
very rare in the US
Popularity narrative
The Census Bureau recorded 101 bearers of the surname Blavat in its 2020 decennial surname file. At a rate of 0.03 per 100,000 residents, it holds the 155270th position in the national surname ranking.
Among Census respondents with the surname Blavat, the largest self-reported group is White at 97.0%. The next largest groups are Black (1.0%) and Hispanic (1.0%).
Origin
Meaning and origin of Blavat
The surname BLAVAT is of French origin, with its roots traced back to the Brittany region of northwestern France during the 12th century. It is believed to have derived from the Old French word "blavat," meaning "light blue" or "pale blue," possibly referring to the color of a particular garment or fabric associated with the original bearer of the name.
One of the earliest recorded instances of the BLAVAT surname can be found in the historic Breton cartularies, which were collections of charters and deeds from medieval monasteries and religious institutions. These cartularies mention individuals with the surname BLAVAT as early as the late 1100s, indicating their presence in the region during that time period.
In the 14th century, the name BLAVAT appeared in various tax records and property deeds in the Brittany region, suggesting that members of the family had established themselves as landowners or merchants in the area. Some of these records also contained variations in spelling, such as "Blavaux" or "Blavauld," reflecting the linguistic evolution of the name over time.
A notable figure in the history of the BLAVAT surname was Jean BLAVAT, a renowned Breton poet and playwright who lived from 1552 to 1621. His works, written in the Breton language, played a significant role in preserving and promoting the cultural heritage of Brittany during the Renaissance period.
Another individual of note was Marguerite BLAVAT (1638-1705), a prominent Breton landowner and philanthropist. She was known for her generous contributions to local churches and charities, as well as her patronage of the arts and education in the region.
During the 17th and 18th centuries, the BLAVAT surname began to spread beyond the borders of Brittany, with members of the family settling in other parts of France and even venturing to the French colonies in the Americas. One such individual was Pierre BLAVAT (1710-1783), a French sailor and explorer who participated in several voyages to the West Indies and the Gulf of Mexico.
In the 19th century, the BLAVAT surname gained further recognition with the achievements of Louis BLAVAT (1819-1892), a French military officer and engineer who played a crucial role in the construction of several fortifications and defensive works along the borders of France during the Franco-Prussian War.
Throughout its long history, the BLAVAT surname has been associated with various professions, including artisans, merchants, soldiers, and intellectuals, reflecting the diverse backgrounds and contributions of those who bore this name over the centuries.
Demographics
Ancestry and ethnicity for Blavat
Among Census respondents with the surname Blavat, the largest self-reported group is White at 97.0%. The next largest groups are Black (1.0%) and Hispanic (1.0%).
The bar chart below shows how Blavat 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 Blavat surname at the time of the 2020 Census, not any inherent property of the name itself.
- White97.0% · 98
- Black or African American1.0% · 1
- Hispanic or Latino1.0% · 1
- Two or more races1.0% · 1
Timeline
Historical Census data for Blavat
Blavat 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
#155,270
National surname rank
Recorded bearers 101
+0 bearers (+0.0%)
Per 100,000 0.03
Rank movement Up 4,442 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2010 | #159,712 | 101 | 0.03 | First available Census row | First available Census row |
| 2020 | #155,270 | 101 | 0.03 | +0 bearers (+0.0%) | Up 4,442 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 Blavat 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 | #159,712 | #155,270 | 2.8% |
| Count | 101 | 101 | 0.0% |
| Per 100K | 0.03 | 0.03 | 12.6% |
Between the 2010 and 2020 Census, the number of Blavat bearers went from 101 to 101 (+0.0% change). The surname moved up 4,442 positions in the national ranking, going from #159,712 to #155,270.
FAQ
Blavat surname: questions and answers
How many people in the U.S. have the surname Blavat?
Name Census estimates that about 116 living Americans carry the surname Blavat. Using the current population baseline, that works out to roughly 1 in 2,954,779 residents.
How common is Blavat?
Blavat ranks #155,270 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 101 people with the surname Blavat. That is different from the site's living-bearer estimate (116), 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 Blavat.
Has Blavat become more or less common over time?
Between 2010 and 2020, the surname Blavat went from 101 recorded bearers to 101. That is an increase of 0 (+0.0%). In the national ranking it rose from #159,712 to #155,270.
What does the Census say about the background of Blavat?
Among Census respondents with the surname Blavat, the largest self-reported group is White at 97.0%. The next largest groups are Black (1.0%) 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 Blavat in the 2020 Census, accounting for 97.0% (98 people in the source table).
What is the full ancestry breakdown?
Blavat appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (97.0%), Black (1.0%), 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 Blavat (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 Blavat mean?
An archaic spelling variant of the French surname Blavat, possibly deriving from a place of origin or occupation. 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 Blavat (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 many people share the surname Blavat?
For a faster, more casual read, check HowManyOfMe.org — our sister site built around that single question.