2000
#13,573
National surname rank
Recorded bearers 2,052
First available Census row
Per 100,000 0.76
Rare Last name
Laguerre
French occupational surname referring to someone who lived near or worked at a watchtower or fortified place.
According to the 2020 US Census Bureau surname tables, roughly 4,004 Americans carry the last name Laguerre. That puts it at #8,990 in the national surname ranking, appearing at a frequency of 1.17 per 100,000 people (about 1 in 85,603 residents).
This page is the full Name Census profile for the Laguerre 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
4.0K
1 in 85,603
Census rank
#8,990
2020 decennial data
Per 100,000
1.2
Frequency rate
Recorded bearers
3.5K
rare in the US
Popularity narrative
The Census Bureau recorded 3,492 bearers of the surname Laguerre in its 2020 decennial surname file. At a rate of 1.17 per 100,000 residents, it holds the 8990th position in the national surname ranking.
Among Census respondents with the surname Laguerre, the largest self-reported group is Black at 85.8%. The next largest groups are Hispanic (8.3%) and White (3.4%).
Origin
Meaning and origin of Laguerre
The surname LAGUERRE has its origins in France, emerging during the Middle Ages. It is derived from the Old French word "guerre," meaning "war," and the prefix "la," indicating a connection to a location or occupation related to warfare or military activities.
One of the earliest recorded instances of the name LAGUERRE can be traced back to the 12th century, where it appeared in various historical documents and records from northern France. It is believed that the name may have been initially associated with individuals who lived near military encampments or fortified settlements during times of conflict.
During the 13th century, the name LAGUERRE appeared in the Trésor des Chartes, a collection of historical documents maintained by the French monarchy. This suggests that individuals bearing this surname may have held positions of importance or rendered military services to the Crown.
In the 14th century, the name LAGUERRE was found in the Livre des Bourgeois de la Ville de Reims, a record of the citizens of the city of Reims. This indicates that the surname had spread to different regions of France and was becoming more established among the general population.
Notable individuals bearing the surname LAGUERRE throughout history include:
1. Edmond Laguerre (1834-1886), a renowned French mathematician known for his contributions to the theory of differential equations and the development of Laguerre polynomials.
2. Georges Laguerre (1865-1943), a French artist and painter who was part of the Impressionist and Fauvist movements.
3. Enrique Laguerre (1853-1915), a Cuban independence fighter and military leader who played a significant role in the struggles against Spanish colonial rule.
4. Louis Laguerre (1663-1721), a French architect and engineer who designed several notable structures in Paris, including the Hôtel de Lassay and the Church of Saint-Louis-en-l'Île.
5. Jean-Baptiste Laguerre (1725-1805), a French playwright and dramatist who wrote numerous comedies and satirical works during the 18th century.
Throughout its history, the surname LAGUERRE has been associated with various spellings and variations, such as Laguerr, Laguere, and La Guerre, reflecting regional linguistic differences and adaptations over time.
Demographics
Ancestry and ethnicity for Laguerre
Among Census respondents with the surname Laguerre, the largest self-reported group is Black at 85.8%. The next largest groups are Hispanic (8.3%) and White (3.4%).
The bar chart below shows how Laguerre 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 Laguerre surname at the time of the 2020 Census, not any inherent property of the name itself.
- Black or African American85.8% · 2,997
- Hispanic or Latino8.3% · 291
- White3.4% · 117
- Two or more races2.2% · 77
- Asian and Pacific Islander0.3% · 9
- American Indian and Alaska Native0.0% · 1
Timeline
Historical Census data for Laguerre
Laguerre 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
#10,174
National surname rank
Recorded bearers 3,171
+1,119 bearers (+54.5%)
Per 100,000 1.07
Rank movement Up 3,399 places
2020
#8,990
National surname rank
Recorded bearers 3,492
+321 bearers (+10.1%)
Per 100,000 1.17
Rank movement Up 1,184 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #13,573 | 2,052 | 0.76 | First available Census row | First available Census row |
| 2010 | #10,174 | 3,171 | 1.07 | +1,119 bearers (+54.5%) | Up 3,399 places |
| 2020 | #8,990 | 3,492 | 1.17 | +321 bearers (+10.1%) | Up 1,184 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 Laguerre 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 | #10,174 | #8,990 | 11.6% |
| Count | 3,171 | 3,492 | 10.1% |
| Per 100K | 1.07 | 1.17 | 9.2% |
Between the 2010 and 2020 Census, the number of Laguerre bearers went from 3,171 to 3,492 (+10.1% change). The surname moved up 1,184 positions in the national ranking, going from #10,174 to #8,990.
FAQ
Laguerre surname: questions and answers
How many people in the U.S. have the surname Laguerre?
Name Census estimates that about 4,004 living Americans carry the surname Laguerre. Using the current population baseline, that works out to roughly 1 in 85,603 residents.
How common is Laguerre?
Laguerre ranks #8,990 in the 2020 Census surname tables and is classified on this site as "Rare." The Census recorded the name at a frequency of 1.17 per 100,000 residents, which is about 1 people out of every 100,000.
How many people with this surname were counted in the Census?
The raw 2020 Census file counted 3,492 people with the surname Laguerre. That is different from the site's living-bearer estimate (4,004), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 1.17 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 1.17 per 100,000 means that if you picked a random group of 100,000 U.S. residents, you would expect about 1 of them to have the surname Laguerre.
Has Laguerre become more or less common over time?
Between 2010 and 2020, the surname Laguerre went from 3,171 recorded bearers to 3,492. That is an increase of 321 (+10.1%). In the national ranking it rose from #10,174 to #8,990.
What does the Census say about the background of Laguerre?
Among Census respondents with the surname Laguerre, the largest self-reported group is Black at 85.8%. The next largest groups are Hispanic (8.3%) and White (3.4%). 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?
Black is the largest self-reported group for the surname Laguerre in the 2020 Census, accounting for 85.8% (2,997 people in the source table).
What is the full ancestry breakdown?
Laguerre appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are Black (85.8%), Hispanic (8.3%), White (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.
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 Laguerre (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 Laguerre mean?
French occupational surname referring to someone who lived near or worked at a watchtower or fortified place. 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 Laguerre (1.17 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 common is the surname Laguerre?
You can see how many people have the surname Laguerre on our sister site HowManyOfMe.org — same data roots, lighter UI.