2000
#50,468
National surname rank
Recorded bearers 389
First available Census row
Per 100,000 0.14
Very Rare Last name
Loduca
An Italian surname derived from the phrase "lo duca" meaning "the duke" or leader.
According to the 2020 US Census Bureau surname tables, roughly 502 Americans carry the last name Loduca. That puts it at #51,363 in the national surname ranking, appearing at a frequency of 0.15 per 100,000 people (about 1 in 682,778 residents).
This page is the full Name Census profile for the Loduca 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
502
1 in 682,778
Census rank
#51,363
2020 decennial data
Per 100,000
0.1
Frequency rate
Recorded bearers
438
very rare in the US
Popularity narrative
The Census Bureau recorded 438 bearers of the surname Loduca in its 2020 decennial surname file. At a rate of 0.15 per 100,000 residents, it holds the 51363rd position in the national surname ranking.
Among Census respondents with the surname Loduca, the largest self-reported group is White at 89.7%. The next largest groups are Hispanic (6.6%) and Two or More Races (2.1%).
Origin
Meaning and origin of Loduca
The surname LODUCA has its origins in Italy, tracing back to the 15th century. It is believed to derive from the Italian word "loduca," meaning a type of cloak or mantle worn during that era. This suggests the name may have been an occupational surname for someone involved in the textile or clothing trade.
Records from the town of Lucca in Tuscany show the earliest known examples of the LODUCA name in the late 1400s. It is possible the name originated in this region, as Lucca was a prominent center for silk and wool production during the Renaissance period.
By the 16th century, variations of the LODUCA spelling, such as Loducca and Loduchhi, can be found in historical documents across northern and central Italy. This indicates the name had begun to spread and establish itself in various Italian communities.
One notable early bearer of the LODUCA name was Giovanni Battista Loduca, a merchant from Genoa who lived from 1510 to 1585. He is recorded as having established trade routes between Italy and the Ottoman Empire, dealing in silk and spices.
In the 17th century, the LODUCA name appears in records from the city of Naples, where a family of architects and builders bearing the surname were responsible for the construction of several churches and palaces. Antonio Loduca (1632-1704) was a renowned architect who designed the Chiesa di Santa Maria della Sanità in Naples.
As the LODUCA name spread across Italy, it also found its way into other parts of Europe. In the 18th century, a branch of the family settled in Spain, where the name was sometimes spelled Loduca or Loduca y Gonzalez. Juan Loduca y Gonzalez (1745-1821) was a Spanish military officer who served in the Napoleonic Wars.
Another notable bearer of the LODUCA name was Maria Loduca (1856-1936), an Italian playwright and feminist activist. She was a prominent figure in the early women's rights movement in Italy and campaigned for educational and legal reforms.
While the LODUCA name maintains its roots in Italy, it has since spread to various parts of the world through migration and diaspora communities. However, its origins can be traced back to the textile and clothing trades of 15th century Italy, where it emerged as a distinctive surname.
Demographics
Ancestry and ethnicity for Loduca
Among Census respondents with the surname Loduca, the largest self-reported group is White at 89.7%. The next largest groups are Hispanic (6.6%) and Two or More Races (2.1%).
The bar chart below shows how Loduca 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 Loduca surname at the time of the 2020 Census, not any inherent property of the name itself.
- White89.7% · 393
- Hispanic or Latino6.6% · 29
- Two or more races2.1% · 9
- Asian and Pacific Islander1.1% · 5
- Black or African American0.5% · 2
Timeline
Historical Census data for Loduca
Loduca 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
#50,196
National surname rank
Recorded bearers 417
+28 bearers (+7.2%)
Per 100,000 0.14
Rank movement Up 272 places
2020
#51,363
National surname rank
Recorded bearers 438
+21 bearers (+5.0%)
Per 100,000 0.15
Rank movement Down 1,167 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #50,468 | 389 | 0.14 | First available Census row | First available Census row |
| 2010 | #50,196 | 417 | 0.14 | +28 bearers (+7.2%) | Up 272 places |
| 2020 | #51,363 | 438 | 0.15 | +21 bearers (+5.0%) | Down 1,167 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 Loduca 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 | #50,196 | #51,363 | -2.3% |
| Count | 417 | 438 | 5.0% |
| Per 100K | 0.14 | 0.15 | 4.7% |
Between the 2010 and 2020 Census, the number of Loduca bearers went from 417 to 438 (+5.0% change). The surname moved down 1,167 positions in the national ranking, going from #50,196 to #51,363.
Notable bearers
Famous people with the surname Loduca
FAQ
Loduca surname: questions and answers
How many people in the U.S. have the surname Loduca?
Name Census estimates that about 502 living Americans carry the surname Loduca. Using the current population baseline, that works out to roughly 1 in 682,778 residents.
How common is Loduca?
Loduca ranks #51,363 in the 2020 Census surname tables and is classified on this site as "Very Rare." The Census recorded the name at a frequency of 0.15 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 438 people with the surname Loduca. That is different from the site's living-bearer estimate (502), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 0.15 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 0.15 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 Loduca.
Has Loduca become more or less common over time?
Between 2010 and 2020, the surname Loduca went from 417 recorded bearers to 438. That is an increase of 21 (+5.0%). In the national ranking it fell from #50,196 to #51,363.
What does the Census say about the background of Loduca?
Among Census respondents with the surname Loduca, the largest self-reported group is White at 89.7%. The next largest groups are Hispanic (6.6%) and Two or More Races (2.1%). 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 Loduca in the 2020 Census, accounting for 89.7% (393 people in the source table).
What is the full ancestry breakdown?
Loduca appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (89.7%), Hispanic (6.6%), Two or More Races (2.1%). 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 Loduca (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 Loduca mean?
An Italian surname derived from the phrase "lo duca" meaning "the duke" or leader. 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 Loduca (0.15 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 have the surname Loduca?
HowManyOfMe.org, our sister site, answers that with the living-bearer count in one glance.