2000
#134,037
National surname rank
Recorded bearers 116
First available Census row
Per 100,000 0.04
Very Rare Last name
Ladelfa
A surname suggesting origins near a place with laurel shrubs.
According to the 2020 US Census Bureau surname tables, roughly 117 Americans carry the last name Ladelfa. That puts it at #154,755 in the national surname ranking, appearing at a frequency of 0.03 per 100,000 people (about 1 in 2,929,524 residents).
This page is the full Name Census profile for the Ladelfa 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
117
1 in 2,929,524
Census rank
#154,755
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
102
very rare in the US
Popularity narrative
The Census Bureau recorded 102 bearers of the surname Ladelfa in its 2020 decennial surname file. At a rate of 0.03 per 100,000 residents, it holds the 154755th position in the national surname ranking.
Among Census respondents with the surname Ladelfa, the largest self-reported group is White at 99.0%. The next largest groups are Two or More Races (1.0%).
Origin
Meaning and origin of Ladelfa
The surname LADELFA is believed to have originated in Spain during the medieval period. It is thought to be derived from the Spanish phrase "la del fa", which translates to "the one from the beech tree". This suggests that the name may have been given to someone who lived near or was associated with a significant beech tree or beech forest.
One of the earliest recorded instances of the name LADELFA can be found in the Libro de Repartimiento de Mallorca, a 13th-century document that recorded the distribution of land and property on the island of Mallorca after the Aragonese conquest. This document mentions a man named Bernardo LADELFA, who was granted land in the region of Inca.
In the 14th century, there are records of a noble family with the surname LADELFA in the city of Valencia. This family was known for their involvement in the silk trade and their patronage of the arts. One notable member of this family was Rodrigo LADELFA, a renowned poet who lived from 1345 to 1412.
The name LADELFA appears to have spread to other parts of Spain and the Spanish colonies in the Americas during the 16th and 17th centuries. For example, there are records of a Diego LADELFA, who was a soldier and explorer in the Spanish conquest of Mexico in the early 16th century.
In the 18th century, a notable figure with the surname LADELFA was María LADELFA, a Spanish painter and engraver who was active in Madrid from 1725 to 1785. Her works were highly regarded and can be found in several museums and private collections in Spain.
Another significant individual with the surname LADELFA was Juana LADELFA, a Spanish writer and feminist activist who lived from 1822 to 1897. She was a prominent figure in the women's rights movement in Spain and wrote several influential works advocating for gender equality and women's education.
While the surname LADELFA is not as common today as it once was, it remains an important part of Spanish history and culture, with its roots tracing back to the medieval era and its association with notable figures in various fields throughout the centuries.
Demographics
Ancestry and ethnicity for Ladelfa
Among Census respondents with the surname Ladelfa, the largest self-reported group is White at 99.0%. The next largest groups are Two or More Races (1.0%).
The bar chart below shows how Ladelfa 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 Ladelfa surname at the time of the 2020 Census, not any inherent property of the name itself.
- White99.0% · 101
- Two or more races1.0% · 1
Timeline
Historical Census data for Ladelfa
Ladelfa 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
#141,140
National surname rank
Recorded bearers 118
+2 bearers (+1.7%)
Per 100,000 0.04
Rank movement Down 7,103 places
2020
#154,755
National surname rank
Recorded bearers 102
-16 bearers (-13.6%)
Per 100,000 0.03
Rank movement Down 13,615 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #134,037 | 116 | 0.04 | First available Census row | First available Census row |
| 2010 | #141,140 | 118 | 0.04 | +2 bearers (+1.7%) | Down 7,103 places |
| 2020 | #154,755 | 102 | 0.03 | -16 bearers (-13.6%) | Down 13,615 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 Ladelfa 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 | #141,140 | #154,755 | -9.6% |
| Count | 118 | 102 | -13.6% |
| Per 100K | 0.04 | 0.03 | -14.7% |
Between the 2010 and 2020 Census, the number of Ladelfa bearers went from 118 to 102 (-13.6% change). The surname moved down 13,615 positions in the national ranking, going from #141,140 to #154,755.
FAQ
Ladelfa surname: questions and answers
How many people in the U.S. have the surname Ladelfa?
Name Census estimates that about 117 living Americans carry the surname Ladelfa. Using the current population baseline, that works out to roughly 1 in 2,929,524 residents.
How common is Ladelfa?
Ladelfa ranks #154,755 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 102 people with the surname Ladelfa. That is different from the site's living-bearer estimate (117), 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 Ladelfa.
Has Ladelfa become more or less common over time?
Between 2010 and 2020, the surname Ladelfa went from 118 recorded bearers to 102. That is a decrease of 16 (-13.6%). In the national ranking it fell from #141,140 to #154,755.
What does the Census say about the background of Ladelfa?
Among Census respondents with the surname Ladelfa, the largest self-reported group is White at 99.0%. The next largest groups are Two or More Races (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 Ladelfa in the 2020 Census, accounting for 99.0% (101 people in the source table).
What is the full ancestry breakdown?
Ladelfa appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (99.0%), Two or More Races (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 Ladelfa (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 Ladelfa mean?
A surname suggesting origins near a place with laurel shrubs. 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 Ladelfa (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 common is the surname Ladelfa?
You can see how many Americans have the surname Ladelfa on our sister site HowManyOfMe.org — same data roots, lighter UI.