2000
#134,929
National surname rank
Recorded bearers 115
First available Census row
Per 100,000 0.04
Very Rare Last name
Loscar
A Catalan surname derived from the Catalan word "losca" meaning squint-eyed or cross-eyed.
According to the 2020 US Census Bureau surname tables, roughly 116 Americans carry the last name Loscar. 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 Loscar 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 Loscar 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 Loscar, the largest self-reported group is White at 91.1%. The next largest groups are Two or More Races (6.9%) and Hispanic (2.0%).
Origin
Meaning and origin of Loscar
The surname Loscar has its origins in the Iberian Peninsula, specifically in the regions of Catalonia and Valencia, where it first emerged in the late 15th century. It is believed to have derived from the Catalan word "llòscar," which means "small stream" or "rivulet." This suggests that the name may have been initially adopted by individuals who lived near or worked around small bodies of water.
One of the earliest recorded instances of the surname Loscar can be found in the municipal archives of Tortosa, a city in Catalonia, where a document dated 1492 mentions a certain Pere Loscar, a local landowner. Another notable early reference is from the Llibre de Repartiment, a medieval record of land distribution in the Kingdom of Valencia, which lists a Guillem Loscar as a recipient of property in the town of Alzira in the late 13th century.
During the 16th and 17th centuries, the Loscar name appeared sporadically in various records across Catalonia and Valencia, often associated with farming communities and small rural settlements. One notable figure from this period was Jaume Loscar, a Catalan poet and dramatist born in Barcelona in 1572, who gained recognition for his satirical works and contributions to the literary circles of his time.
As the centuries progressed, the Loscar surname began to spread beyond its initial stronghold in the eastern regions of the Iberian Peninsula. In the 18th century, a branch of the family settled in the Canary Islands, where a prominent figure, Tomás Loscar y Pérez (1748-1821), served as a naval officer and played a role in the defense of the islands during the Napoleonic Wars.
Moving into the 19th century, the Loscar name found its way to the Americas, with several individuals bearing the surname making their mark in various fields. One notable example is Mariano Loscar, a Cuban-born artist and painter who lived from 1828 to 1892 and was renowned for his landscapes and portraiture.
Other notable individuals with the Loscar surname throughout history include María Loscar y Mena (1859-1932), a Spanish educator and advocate for women's rights, and José Loscar Teruel (1884-1957), a Spanish politician and journalist who served as a member of the Spanish parliament during the Second Republic.
Demographics
Ancestry and ethnicity for Loscar
Among Census respondents with the surname Loscar, the largest self-reported group is White at 91.1%. The next largest groups are Two or More Races (6.9%) and Hispanic (2.0%).
The bar chart below shows how Loscar 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 Loscar surname at the time of the 2020 Census, not any inherent property of the name itself.
- White91.1% · 92
- Two or more races6.9% · 7
- Hispanic or Latino2.0% · 2
Timeline
Historical Census data for Loscar
Loscar 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
#159,712
National surname rank
Recorded bearers 101
-14 bearers (-12.2%)
Per 100,000 0.03
Rank movement Down 24,783 places
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 |
|---|---|---|---|---|---|
| 2000 | #134,929 | 115 | 0.04 | First available Census row | First available Census row |
| 2010 | #159,712 | 101 | 0.03 | -14 bearers (-12.2%) | Down 24,783 places |
| 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 Loscar 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 Loscar 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
Loscar surname: questions and answers
How many people in the U.S. have the surname Loscar?
Name Census estimates that about 116 living Americans carry the surname Loscar. Using the current population baseline, that works out to roughly 1 in 2,954,779 residents.
How common is Loscar?
Loscar 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 Loscar. 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 Loscar.
Has Loscar become more or less common over time?
Between 2010 and 2020, the surname Loscar 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 Loscar?
Among Census respondents with the surname Loscar, the largest self-reported group is White at 91.1%. The next largest groups are Two or More Races (6.9%) and Hispanic (2.0%). 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 Loscar in the 2020 Census, accounting for 91.1% (92 people in the source table).
What is the full ancestry breakdown?
Loscar appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (91.1%), Two or More Races (6.9%), Hispanic (2.0%). 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 Loscar (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 Loscar mean?
A Catalan surname derived from the Catalan word "losca" meaning squint-eyed or cross-eyed. 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 Loscar (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 Americans have the surname Loscar?
For a quick modern estimate, our sister site HowManyOfMe.org answers that in one glance, with the living-bearer count front and centre.