2000
#25,633
National surname rank
First available Census row
A surname originating from Spain or Latin America, likely derived from a place name.
According to the 2020 US Census Bureau surname tables, roughly 1,483 Americans carry the last name Lascano. That puts it at #20,719 in the national surname ranking, appearing at a frequency of 0.43 per 100,000 people (about 1 in 231,122 residents).
This page is the full Name Census profile for the Lascano 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
1.5K
1 in 231,122
Census rank
#20,719
2020 decennial data
Per 100,000
0.4
Frequency rate
Recorded bearers
1.3K
rare in the US
Popularity narrative
The Census Bureau recorded 1,293 bearers of the surname Lascano in its 2020 decennial surname file. At a rate of 0.43 per 100,000 residents, it holds the 20719th position in the national surname ranking.
Among Census respondents with the surname Lascano, the largest self-reported group is Hispanic at 79.0%. The next largest groups are Asian/Pacific Islander (11.4%) and White (7.4%).
Origin
The surname Lascano has its origins in Spain and is believed to have emerged during the Middle Ages, sometime around the 12th or 13th century. It is thought to have derived from the Spanish word "lascano," which referred to a person from the town of Lascano, a small village located in the northern region of Navarre.
One of the earliest recorded instances of the Lascano surname can be found in a document from the year 1278, where it is mentioned as "de Lascano." This document is believed to be a census record of households in the area around Lascano.
In the 14th century, a knight named Juan de Lascano was noted for his service in the battles against the Moors during the Reconquista, the period of Christian conquest of the Iberian Peninsula from the Muslim rulers. Juan de Lascano was born around 1320 and served under King Alfonso XI of Castile.
As the centuries passed, the Lascano family spread across various regions of Spain, and some members even ventured to the New World during the Spanish colonization of the Americas. One notable figure from this era was Pedro de Lascano, an explorer and conquistador who accompanied Hernán Cortés on his expeditions to Mexico in the early 16th century. Pedro de Lascano was born in 1495 in Seville, Spain, and died in 1565 in Mexico City.
In the 17th century, a prominent member of the Lascano family was Francisco de Lascano, a scholar and writer who authored several works on theology and philosophy. Francisco de Lascano was born in 1621 in Zaragoza, Spain, and lived until 1698.
Another notable individual with the Lascano surname was María de Lascano, a Spanish poet and writer who lived in the 18th century. She was born in 1732 in Madrid and gained recognition for her literary works, which included poetry and plays. María de Lascano passed away in 1808.
Throughout its history, the Lascano surname has been associated with various regions of Spain, particularly in the northern areas like Navarre and the Basque Country. While the name has spread globally due to migration and immigration, its roots can be traced back to the medieval period in the Iberian Peninsula.
Demographics
Among Census respondents with the surname Lascano, the largest self-reported group is Hispanic at 79.0%. The next largest groups are Asian/Pacific Islander (11.4%) and White (7.4%).
The bar chart below shows how Lascano 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 Lascano surname at the time of the 2020 Census, not any inherent property of the name itself.
Timeline
Lascano 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.
2000
National surname rank
First available Census row
2010
National surname rank
+373 bearers (+41.3%)
2020
National surname rank
+16 bearers (+1.3%)
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #25,633 | 904 | 0.34 | First available Census row | First available Census row |
| 2010 | #20,709 | 1,277 | 0.43 | +373 bearers (+41.3%) | Up 4,924 places |
| 2020 | #20,719 | 1,293 | 0.43 | +16 bearers (+1.3%) | Down 10 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 Lascano 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 | #20,709 | #20,719 | -0.0% |
| Count | 1,277 | 1,293 | 1.3% |
| Per 100K | 0.43 | 0.43 | 0.6% |
Between the 2010 and 2020 Census, the number of Lascano bearers went from 1,277 to 1,293 (+1.3% change). The surname moved down 10 positions in the national ranking, going from #20,709 to #20,719.
FAQ
Name Census estimates that about 1,483 living Americans carry the surname Lascano. Using the current population baseline, that works out to roughly 1 in 231,122 residents.
Lascano ranks #20,719 in the 2020 Census surname tables and is classified on this site as "Rare." The Census recorded the name at a frequency of 0.43 per 100,000 residents, which is about 0 people out of every 100,000.
The raw 2020 Census file counted 1,293 people with the surname Lascano. That is different from the site's living-bearer estimate (1,483), 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 0.43 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 Lascano.
Between 2010 and 2020, the surname Lascano went from 1,277 recorded bearers to 1,293. That is an increase of 16 (+1.3%). In the national ranking it fell from #20,709 to #20,719.
Among Census respondents with the surname Lascano, the largest self-reported group is Hispanic at 79.0%. The next largest groups are Asian/Pacific Islander (11.4%) and White (7.4%). These figures come from the 2020 Census Bureau surname tables, based on how respondents described their own race and ethnicity.
Hispanic is the largest self-reported group for the surname Lascano in the 2020 Census, accounting for 79.0% (1,021 people in the source table).
Lascano appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are Hispanic (79.0%), Asian/Pacific Islander (11.4%), White (7.4%). 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 Lascano (2000, 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 originating from Spain or Latin America, likely derived from a place name. 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 Lascano (0.43 per 100,000) and applies that rate to the current U.S. resident population to estimate how many living Americans have the surname today.
You can see how many Americans have the surname Lascano on our sister site HowManyOfMe.org — same data roots, lighter UI.