2000
#144,908
National surname rank
Recorded bearers 105
First available Census row
Per 100,000 0.04
Very Rare Last name
Dalferes
A surname possibly derived from the French word "dalfin" meaning dolphin.
According to the 2020 US Census Bureau surname tables, roughly 124 Americans carry the last name Dalferes. That puts it at #150,935 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,764,148 residents).
This page is the full Name Census profile for the Dalferes 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
124
1 in 2,764,148
Census rank
#150,935
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
108
very rare in the US
Popularity narrative
The Census Bureau recorded 108 bearers of the surname Dalferes in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 150935th position in the national surname ranking.
Among Census respondents with the surname Dalferes, the largest self-reported group is White at 75.0%. The next largest groups are Black (13.9%) and Hispanic (4.6%).
Origin
Meaning and origin of Dalferes
The surname DALFERES is believed to have its origins in Spain, dating back to the medieval period. It is thought to be derived from the Spanish words "dal" meaning "from" and "feres" meaning "iron," suggesting a possible connection to an occupation or trade involving iron works or metalsmithing.
DALFERES is often considered a variant spelling of the more common Spanish surname "FERRERES," which has a similar meaning and origin. Some historical records indicate that the name may have originated in the region of Catalonia, where it was initially spelled "FERRES" or "FERRERS."
One of the earliest recorded instances of the name DALFERES can be found in the "Libro de Repartimiento de Mallorca," a 13th-century document detailing the distribution of lands and properties in the Balearic Islands after the Christian conquest. This document mentions a certain "Ferrer Dalferes" who received a parcel of land in the newly conquered territory.
In the 14th century, there are records of a family by the name of DALFERES residing in the town of Morella, located in the present-day province of Castellón, Valencia. This family is believed to have played a significant role in the local community and may have been involved in metalworking or related trades.
One notable individual with the surname DALFERES was Juan Dalferes, a Spanish soldier and explorer who participated in the conquest of the Americas in the 16th century. He was part of the expeditions led by Hernán Cortés and is mentioned in several historical accounts of the period.
Another prominent figure was Raquel Dalferes, a 17th-century writer and poet from Barcelona. Her collection of poems, published in 1673, gained her recognition in literary circles of the time.
In the 18th century, a prominent family by the name of DALFERES resided in the town of Castellón de la Plana, where they were involved in the local government and held influential positions.
During the 19th century, the surname DALFERES can be found in various parts of Spain, including the regions of Catalonia, Valencia, and Andalusia. One notable individual from this period was Miguel Dalferes, a painter and artist from Seville, who gained recognition for his landscapes and portraits.
While the surname DALFERES is not as common as some other Spanish surnames, it has a rich history dating back several centuries and is scattered across various regions of Spain, reflecting the country's diverse cultural heritage.
Demographics
Ancestry and ethnicity for Dalferes
Among Census respondents with the surname Dalferes, the largest self-reported group is White at 75.0%. The next largest groups are Black (13.9%) and Hispanic (4.6%).
The bar chart below shows how Dalferes 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 Dalferes surname at the time of the 2020 Census, not any inherent property of the name itself.
- White75.0% · 81
- Black or African American13.9% · 15
- Hispanic or Latino4.6% · 5
- Two or more races3.7% · 4
- Asian and Pacific Islander1.9% · 2
- American Indian and Alaska Native0.9% · 1
Timeline
Historical Census data for Dalferes
Dalferes 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
#158,432
National surname rank
Recorded bearers 102
-3 bearers (-2.9%)
Per 100,000 0.03
Rank movement Down 13,524 places
2020
#150,935
National surname rank
Recorded bearers 108
+6 bearers (+5.9%)
Per 100,000 0.04
Rank movement Up 7,497 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #144,908 | 105 | 0.04 | First available Census row | First available Census row |
| 2010 | #158,432 | 102 | 0.03 | -3 bearers (-2.9%) | Down 13,524 places |
| 2020 | #150,935 | 108 | 0.04 | +6 bearers (+5.9%) | Up 7,497 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 Dalferes 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 | #158,432 | #150,935 | 4.7% |
| Count | 102 | 108 | 5.9% |
| Per 100K | 0.03 | 0.04 | 20.4% |
Between the 2010 and 2020 Census, the number of Dalferes bearers went from 102 to 108 (+5.9% change). The surname moved up 7,497 positions in the national ranking, going from #158,432 to #150,935.
FAQ
Dalferes surname: questions and answers
How many people in the U.S. have the surname Dalferes?
Name Census estimates that about 124 living Americans carry the surname Dalferes. Using the current population baseline, that works out to roughly 1 in 2,764,148 residents.
How common is Dalferes?
Dalferes ranks #150,935 in the 2020 Census surname tables and is classified on this site as "Very Rare." The Census recorded the name at a frequency of 0.04 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 108 people with the surname Dalferes. That is different from the site's living-bearer estimate (124), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 0.04 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 0.04 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 Dalferes.
Has Dalferes become more or less common over time?
Between 2010 and 2020, the surname Dalferes went from 102 recorded bearers to 108. That is an increase of 6 (+5.9%). In the national ranking it rose from #158,432 to #150,935.
What does the Census say about the background of Dalferes?
Among Census respondents with the surname Dalferes, the largest self-reported group is White at 75.0%. The next largest groups are Black (13.9%) and Hispanic (4.6%). 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 Dalferes in the 2020 Census, accounting for 75.0% (81 people in the source table).
What is the full ancestry breakdown?
Dalferes appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (75.0%), Black (13.9%), Hispanic (4.6%). 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 Dalferes (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 Dalferes mean?
A surname possibly derived from the French word "dalfin" meaning dolphin. 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 Dalferes (0.04 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 share the surname Dalferes?
For a quick modern estimate, our sister site HowManyOfMe.org answers that in one glance, with the living-bearer count front and centre.